The pumping station operates jerkily for a reason. Malfunctions of the pumping station, or How to repair the pumping station with your own hands? Correct connection is the key to successful operation

A pumping station is an excellent solution for organizing water supply in a private household. An unexpected breakdown of this set of devices can cause owners a lot of trouble. Fortunately, most breakdowns are typical and can be fixed at home. You should learn in advance how to repair equipment yourself. This is what we will talk about now - stay with us and you will learn a lot of new things!

How to ensure stable operation of the water supply system

In order for the plumbing system to function successfully, it is necessary to provide a certain level of pressure and water pressure. When there is no access to centralized water supply, this problem is easily solved using a pumping station. It usually consists of:

• pump;
• membrane storage tank;
• automatic control unit (pressure switch, pressure gauge, etc.).

The pump pumps water, which enters the tank. When the pressure in the tank reaches a certain maximum level, the pump turns off. Gradually, the water from the tank is consumed for various needs and the pressure drops. At a minimum pressure level, the pump turns on again and water flows into the tank. The process is controlled automatically.

With the help of such a unit, you can provide water supply to a house, bathhouse and other buildings located on the site. Having studied the principle of operation, you need to begin studying possible breakdowns and ways to eliminate them.

Having studied the principle of operation and the design of the pumping station, you can repair it yourself

Common causes of pumping station breakdowns

In the world, as the classics rightly say, nothing lasts forever, this also applies to equipment. Unexpected malfunctions in the operation of pumping equipment; its stop or incorrect operation can be caused by a number of reasons, such as:

• lack of electricity;
• lack of water in the system;
• pump failure;
• breakdown of the membrane tank;
• damage to the automatic unit, etc.

The design of household pumping units is not particularly complicated, and this allows you to do the repairs yourself. In some cases, you need to disassemble the pump and replace the damaged part. Sometimes it is necessary to seal a crack in the tank, and sometimes it is enough to simply check the availability of electricity. In each specific case, you need to determine why the pump does not pump water and find a “recipe” for solving the problem. If you cannot find an acceptable solution to the problem, you need to contact specialists.

Typical faults and their elimination

Below we will consider a number of problems and malfunctions that may arise during the operation of a pumping station.

The pump rotates, no water enters the system - the check valve is not working properly

Cause: The tightness of the conductive pipelines is broken, the check valve is not working correctly, there is no water in the pipeline or pump.

Solution to the problem: First, you should check the presence of water in the pipeline or pump. If it is missing, you just need to add it to the pump through the hole provided for this or lower the suction hose (or the pump itself) deeper. The maximum permissible distance between the pump and the water level must be maintained.

Now you need to check the condition of the check valve and the tightness of the joints, and then eliminate the detected problems. If all these measures do not help, the pump may be damaged by abrasives that have gotten into the water, for example, sand. In this case, you will have to disassemble the pump and replace its impeller or housing. In some cases, it is necessary to install a new pump.

Please note that before starting work it would not hurt to check the voltage in the electrical network. If it is insufficient (a typical situation in rural areas), the pump will not pump water, although it will turn on.

The station operates jerkily - the hydraulic tank is damaged

Cause: The answer to the question why the pumping station turns on too often is most often that some part of the hydraulic tank is damaged. Because of this, the equipment does not build up pressure.

The hydraulic tank of the pumping station consists of a housing and a membrane located inside

Solution to the problem: First you need to press the nipple located on the back of the tank. If water flows out of it (air should come out), then the inner membrane is torn and should be replaced.

Another possible reason why the pressure in the unit’s hydraulic accumulator does not correspond to the normal value is a violation of the seal of the housing. You need to find a crack or hole and seal it. Sometimes, to solve the problem, it is enough to simply pump the missing amount of air into the tank using a conventional pump. The standard value of pressure in the tank is 1.5-1.8 atmospheres.

The missing air can be pumped into the membrane tank through a standard threaded fitting with a spool valve

It should be noted that sometimes water flows intermittently due to a leak in the joints of the suction pipeline. It must be checked along its entire length and any cracks found must be repaired.

Doesn't turn on

Cause: There is no power supply.

Solution to the problem: It is necessary to check and possibly clean the burnt contacts of the pressure switch, and check the integrity of the winding. The fact that the engine has burned out will become clear from the smell characteristic of burning insulating materials.

It turns on but does not rotate - the reason is the capacitor or impeller

Cause: the condenser is broken or the impeller is “stuck” to the pump body. This situation often occurs with pumps that have been sitting idle for several months.

Solution to the problem: To start a blocked impeller, you just need to turn it by hand a couple of times. After this, the pump should turn on. If the capacitor is broken, it will have to be replaced.

The unit does not turn off and works constantly - the relay is not adjusted

Cause: The pressure switch is malfunctioning.

Solution to the problem: The pump station pressure switch needs to be adjusted. To do this, use two springs located on the relay: large and small. The large spring is responsible for regulating the lower pressure limit, and the small one regulates the difference between the minimum and maximum values. All manipulations with the pressure switch must be done extremely carefully.

To find out the reasons why the equipment does not turn off, you should definitely check the condition of the pressure switch inlet. Sometimes it becomes clogged with particles and sediments contained in the water. In this case, the hole must be cleaned and the operation of the pressure switch checked.

A few words about adjusting the pressure switch

It should be remembered that the regulation of the pressure switch of the pumping station must be treated with great care. If this unit is not adjusted correctly, it can lead to serious damage to the entire station, and the manufacturer's warranty does not apply to such cases.

First you need to achieve the correct pressure in the accumulator. To do this, the device is disconnected from the network, and the water is completely drained from the tank. Then, using a pump with a pressure gauge or a household compressor, the required level of pressure is created in the hydraulic tank. Now you need to unscrew the plastic cover on the pressure switch to gain access to the control springs.

The minimum pressure to turn on the pump is adjusted using a large spring (2, see figure). Turning the spring clockwise increases this indicator, and turning it counterclockwise decreases it. To set the required range between the maximum and minimum pressure limits, rotate the pressure differential adjustment spring (1, see figure). Turning the nut clockwise expands the range, while turning it counterclockwise narrows it.

The pressure switch of the pumping station is regulated by a large and small spring

Then the pressure switch cover must be replaced, fill the pumping station with the required volume of water and connect the power supply. The maximum pressure value in the system should be no more than 95% of the maximum possible outlet pressure, which is indicated by the manufacturer in the data sheet.

Knowing about these malfunctions, you will be able to figure out in time why the pumping station is not working and fix the problem yourself.

Do-it-yourself pumping station repair: popular faults

The operating principle of the pumping station, typical breakdowns, their causes. Do-it-yourself troubleshooting and repairs.

Popular malfunctions of pumping stations and ways to eliminate them

Pumping stations are actively used in organizing autonomous water supply in private homes. Also, using this unit you can improve the water supply in a city apartment.

Like any other equipment, stations break down from time to time and require repairs. Owners can fix some of the breakdowns themselves without contacting a service center.

What's included?

The pumping station includes several components that ensure uninterrupted operation of the water supply system. This:

• an automatic control unit, including a pressure gauge and a relay for pressure control;
• storage tank with membrane;
• and a pump for pumping water.

The entire water supply process is carried out automatically. When the pressure drops, the automation automatically turns on the pump. Water enters the tank. And when the pressure on the membrane reaches a certain level, the control unit is activated and the pump is turned off. When water is consumed for household needs, the storage tank is emptied, the pressure drops and the entire operating cycle is repeated.

What can break?

Incorrect operation of the station, failures in its operation, stoppage and failure is due to one of several reasons:

• the control unit was damaged;
• the membrane inside the tank has ruptured or a leak has appeared in it;
• the pump has failed;
• the power was cut off;
• there is no water in the system (the water supply is cut off).

The design of this unit is not particularly complicated. Owners can easily sort out simple breakdowns on their own. This even applies to the pump, because it can be easily disassembled and the damaged part can be replaced.

Common faults

If the pump runs continuously, this indicates a malfunction in the pressure switch.

In most cases, adjusting the pressure switch will be enough to solve the problem. Inside it there are two springs responsible for the upper and lower pressure limits.

To make adjustments, the cover (housing) is removed from the unit. A large spring is responsible for turning on the pump. With its help, the minimum pressure is set. Rotating the spring clockwise increases the value and counterclockwise decreases it. A small spring allows you to set the correct range between the lower and upper values ​​required to turn off the station. Rotating clockwise expands the range, while turning counterclockwise narrows it.

The nuts must be rotated carefully, and after each adjustment, testing must be done - turn on the pump and monitor the pressure gauge needle to determine whether the station is operating correctly. Important point: maximum pressure readings must be 95% of those specified by the manufacturer in the technical data sheet.

If the pump is plugged in and does not rotate, the issue is a broken capacitor or “sticking” of the impeller - this is a common problem for units that have not been used for a long time.

To eliminate the breakdown, you need to rotate the impeller several times manually. After this, the pump will start. A failed capacitor will have to be replaced.

If the pump does not work when plugged in Most likely there is no power supply. It is necessary to check the voltage in the socket with a tester, inspect the power cord, and clean the burnt contacts in the pressure switch. If the unit still does not start, you need to dismantle the pump housing and inspect the motor winding. A short circuit is indicated by the characteristic smell of burning insulation. This unit must be repaired at a service center.

If the station operates jerkily, it's a problem with the storage tank. Some part of the hydraulic tank is damaged and the station does not have time to gain the required pressure.

To fix the breakdown you need to perform the following manipulations:

1. Remove the plastic cover on the tank body and press the nipple. Water escaping from here indicates a membrane rupture. The tank must be disassembled by unscrewing the bolts at the end, removing the old membrane and installing a new one. During operation, you must be guided by the technical information from the data sheet attached to the product.

Dismantled membrane (pear)

1. Inspect the housing for cracks. This is a common disease of enamel models that are not durable. A small crack can be repaired, but it is better to purchase a new tank.
2. Measure the pressure through the nipple (if water does not flow out of this unit!) and, if necessary, pump up air with a car pump. The pressure gauge should show a value of 1.5-1.8 atmospheres.
3. It is also necessary to check all joints of the water supply pipe and eliminate possible leaks.

If the pump is working normally, but water still does not flow, it is necessary to inspect the pipeline and check the operation of the check valve.

To test the system, the water missing in the water supply can be added through a special technical hole in the pump. Alternatively, you can lower the suction hose into a container of water. Then the tightness of the entire system and the operation of the valve are checked.

In some cases, the pump may become clogged with sand or other abrasives. It must be cleaned of dirt and, if necessary, replaced with a new unit.

It would also be a good idea to check the voltage in the electrical network through the outlet. In country houses and dachas, the entire electrical network may not function properly. If there is insufficient voltage, the pump will turn on, but will not supply water.

These are the most common breakdowns that can be easily fixed with your own hands. If you cannot cope with the repair yourself, you should contact a qualified plumber or the nearest service center.

Pumping station malfunctions: causes and troubleshooting

Malfunctions of pumping stations and their elimination: what is included in the package of this water supply unit, what can fail. The most common breakdowns and ways to fix them.

Heating and water supply at home

Pumping station: possible malfunctions and their elimination

Pumping stations for water supply to a home or cottage have gained wide popularity among people living in the private sector. On the Internet you can find different reviews about their work, advantages, disadvantages. After all, automatic water supply to the house for household needs is very convenient.

But over time, unfortunately, sometimes various malfunctions begin to appear: the pump does not work or does not gain pressure, does not turn off for a long time or, conversely, does not turn on. The reasons for this may be different and it is necessary repair of pumping stations, this is what we will talk about in this article.

We will analyze the main malfunctions in the operation of the water supply pumping station, what could be their causes, and develop the main methods for troubleshooting.

Main malfunctions during the operation of pumping stations

Based on experience in operating pumping stations, the most common malfunctions in the operation of this type of equipment are:

1. What to do if the pump does not work

Possible reason: lack of voltage in the electrical network or the shaft is blocked.

First, check the voltage; if this is not the reason, try turning the pump shaft yourself, first disconnecting the pump from the power supply.

2. The pumping station does not pump water, although the pump itself is working.

The main reason in this case may be the formation of an air lock in the suction section of the pipe or in the pump itself.

Unscrew the plug on the pump filler hole. Try to force the air out of the pump by rocking it and the suction pipe. Check the pipe and fittings for leaks. Then refill the pump with water and turn it on.

3. The pump turns off due to engine overheating

One of the reasons could be:

Network voltage does not match

Pump impeller blocked

The pumping station was exposed to the Sun for a long time or hot water was driven through the pump

The pump worked “dry” without water

Turn off the pump, check the impeller, eliminate the cause, wait until the engine cools down.

Pumping station repair

4. The pumping station often turns on and off

There could be three reasons:

If the membrane in the hydraulic tank is torn, replace it with a new one.

If there is no required pressure in the accumulator, then pump up to 1.5 atmospheres

The check valve may be faulty, replace it with a new one

5. The pumping station does not gain or maintain pressure

Adjust the pressure in the relay, it may not be enough.

It is also possible that air can get into the pipe.

6. The water supply pumping station does not turn off

Incorrect setting of pressure switch parameters.

It is necessary to set a lower pressure.

So, we have analyzed the main malfunctions in the operation of pumping stations, identified the main causes of malfunctions, and learned methods for eliminating them. This work can be done with your own hands, but it is better to contact a specialized organization for the repair of pumping equipment (stations).

Repair and malfunctions of the pumping station: causes and methods of eliminating them

What to do if the pumping station does not hold pressure and often turns on and off? Causes of malfunction of pumping stations, methods for their elimination and repair...

Malfunctions of the pumping station, or How to repair the pumping station with your own hands?

No device, no matter how reliable it is, works forever. Alas! This also applies to pumps for water supply systems. Therefore, at the end of the topic about pumping equipment, let’s figure out what types of pumping station malfunctions and how to repair a pumping station with your own hands. If you were looking for: water supply pumping station faults, home pumping station faults, water pumping station faults, pumping station pressure switch faults. then this article is still for you. Further I will simply list possible faults and “correct” them.

The pumping station is working (the pump is spinning), but there is no water:

The steps to resolve this issue are as follows:

• First of all, you need to check the check valve, which is located in the water in a well or well. It often happens that sand or debris gets into it and the valve does not close. In this case, the water does not rise through the pipes to the pump.
• Secondly, check the presence of water in the pipeline between the well and the pump. The pump must also be filled with water; if there is no water, fill it through the filler hole.
• Very large gap between the impeller and the pump housing. The pump simply works on its own. The reason for this may be the high content of abrasive substances in the water, such as sand. In this case, you should change the housing and impeller, if they are commercially available, or the entire pump (but not the entire station!).
• The well/well simply ran out of water. The solution is to try lowering the suction pipeline or hose deeper. But remember: the distance from the water level in the well to the pump should not exceed that indicated on the pump, usually 8-9 m.

The pump pumps jerkily (turns on/off very often):

To fix this problem, you need to do the following:

• Pay attention to the pressure gauge, which is located on the automation unit. If the pressure gauge needle rises to the pressure at which the station was set (at which point the pump will turn off), then drops sharply until it turns on, then there may be the following reasons:
• there is no air pressure in the hydraulic tank. At the factory, nitrogen is pumped into the tank to a pressure of 1.5 atm. Sometimes, due to corrosion, cracks appear in the tank body and the pressure does not hold for long. You need to find the leak and seal the crack (for example, “cold welding”). You can check the air pressure in the hydraulic tank by connecting a pressure gauge (at least a car gauge) to the nipple. The pressure in the tank may not necessarily be due to a crack, but simply due to unknown reasons, the air has escaped. Then you don’t need to drive yourself crazy in search of non-existent cracks, but simply pump up the air with a pump (in fact, that’s where you should start);
• rupture of the diaphragm separating air and water in the tank. You can check this through the nipple: if water flows from the nipple, it means the diaphragm is damaged;
• does not work pressure switch, which controls the activation of the pump.

The pump pumps, but the water flows intermittently (jerkily):

The cause of this malfunction of the pumping station and the measures to eliminate it are as follows:

• There is an air leak somewhere. It is necessary to check the suction pipeline from the wells to the pump, the connections and the water level in the well. The suction height should not exceed 8-9 m (for a pipe diameter of 1” - 25 mm; if the pipe is of a smaller diameter, for example, 1/2”, then the height should be less).

The pump pumps, water flows, but the pump does not turn off:

This is precisely the reason - a malfunction of the pressure switch of the pumping station, which we deal with as follows:

• the pressure switch needs to be adjusted. For adjustment, the relay has two springs, large and small:

A large spring regulates the pump on/off (upper and lower limits). The difference in pressure between the upper and lower limits is regulated by a small one. After prolonged use of the pump, the moving parts of the pump wear out, and over time the pump can no longer create the pressure that was “prescribed” to it at the factory. Therefore, you need to reduce it using a large spring, turning it in the direction of the arrow to “-“. However, you should not get carried away with such adjustments;

• The inlet hole in the pressure switch is clogged:

If the water quality is low, then sometimes hardness salts form and the hole in the pressure switch becomes clogged. The relay simply stops responding. You need to remove the relay and clean it.

The pump does not turn on:

Here are the steps to resolve this pumping station problem:

• look at the contacts of the pressure switch - use a tester to check the presence of power supply. If the contacts are burnt, clean them (for example, with fine sandpaper or a needle file);
• check the pump motor, check the contacts, power supply, “ring” for the integrity of the winding, check the validity of the starting capacitor. If the motor burns out, it should be rewound or replaced with a new one.

The pump hums, but does not spin:

The reasons for this pumping station malfunction are as follows:

• It happens that the pump spent the winter somewhere in a barn, and in the spring they took it out and tried to start it. But it begins to hum... Due to the fact that the pump was left without water and without movement for a long time, the pump impeller “glued” to the housing. You need to manually rotate the impeller from the back side, and then plug it into the network;
• the capacitor has failed (located in the branded engine box);
• It is necessary to check the voltage in the electrical network, perhaps it is simply too low.

That's all (or almost all) that can be said about malfunction of the pumping station for home water supply systems and about repairing a pumping station with your own hands.

Pumping station malfunctions: list, causes, do-it-yourself repairs

Possible malfunctions of the pumping station: list of malfunctions and their causes. How to repair a pumping station yourself?

Do-it-yourself repair of pumping stations - possible malfunctions and their elimination

The main element of any autonomous water supply system is the pumping station, which, like any other technical device, can periodically fail. In order to return pumping equipment to working condition, you can use the services of specialized companies or repair the pumping station yourself. However, before starting to repair such technically quite complex equipment, it is necessary to identify the reasons why the water pumping station is not functioning.

Disassembling a submersible pump for diagnostics and troubleshooting

There are many reasons for malfunctions in a pumping station. They may be associated with a lack of power supply, improper water supply from a water supply source, breakdown of the pump itself, failure of the hydraulic accumulator or elements that provide automatic control of the equipment. Many of these reasons that lead to the fact that water supply stations do not work or function incorrectly can be identified and eliminated at home, and repairs do not require professional skills and complex equipment.

Construction of pumping stations

Pumping stations, which are often called hydrophores, are now actively used to organize autonomous water supply systems for country houses and cottages, so the question of how to independently repair such equipment, if the need arises, is quite relevant. Before you figure out how to repair a pumping station with your own hands, you need to understand what such stations consist of and on what principle they work.

Construction of a surface pumping station

A pumping station for equipping a domestic water supply system, which pumps liquid into the pipeline system, is installed on the surface of the earth, as close as possible to the well (as far as possible), and operates from the electrical power supply network. The main structural elements of pumping stations that ensure efficient and uninterrupted operation of such equipment in automatic mode are:

• the water pump itself, which pumps water from a well or a well and pushes it under pressure to the outlet pipe (to equip pumping stations, a surface pump, rather than a submersible one, is used);
• a water intake hose that is immersed in water to the maximum possible level;
• a check valve that prevents water from the suction pipeline from flowing back into the well or well;
• a mesh filter installed in front of the check valve and purifies the water pumped from the source from dirt and sand particles, the entry of which into the inside of the pump can become one of the reasons for its failure;
• a pressure sensor installed after the pump - on the pressure line (the main task of such a sensor, operating in automatic mode, is to turn on the pump if the water pressure in the water supply system drops to a critical value, and turn it off when it reaches the required parameters);
• a water flow sensor, which is installed before the pump and does not allow it to idle (when water stops flowing from a well or well, such a sensor automatically turns off the device, preventing it from overheating);
• a pressure gauge that allows you to measure the water pressure in the pipeline created by the pumping station.

Malfunctions of a pumping station, as mentioned above, can be determined by a number of reasons, the exact clarification of which will allow repairs to be carried out promptly and with the highest possible quality, returning the equipment to working condition. Diagnostics carried out to determine the cause of a pumping station breakdown do not require the use of complex equipment and professional skills. Most of the typical malfunctions of pumping stations can be identified both by external signs and by using the instruments that such equipment and the water supply system were originally equipped with.

Among the malfunctions of pumping stations, several of the most typical ones can be identified, which each user is able to identify and eliminate independently, using the advice of specialists during repairs.

The pump works, but no water enters the system

When starting a pumping station, it may happen that the pump with which it is equipped works, but no liquid flows into the water supply. To determine why the pumping station does not pump water, it is necessary to analyze individual parameters and operating conditions of the elements included in the equipment.

• First, you need to assess the technical condition and correct operation of the check valve, which is located on the suction pipe in the inside of the well or well. Very often the pumping station does not pump precisely because this valve is clogged with sand and dirt: without opening, it simply does not allow water from the well to flow to the pump.
• You should check whether there is water in the part of the pressure pipeline that is located between the pump and the well. If there is no liquid there, then, accordingly, the device has nothing to pump. Often this situation occurs when there is a power outage and the pumping station stops operating. In order for the pumping station to start operating normally again, it is enough to fill this part of the pipeline with water, for which a special hole is provided in it.
• It is necessary to check (with the pump disassembled) how large the output is between the inner walls of its housing and the impeller. Such production is most intensively formed in cases where water containing a large amount of insoluble impurities (a kind of abrasive) is pumped. If this particular reason for the lack of water in the water supply system while the pumping station is running is identified, then repair of the pump is necessary, which consists of replacing the impeller and device housing, or its complete replacement. If you find components suitable for your equipment model, you can repair the water pump yourself.
• It is also necessary to determine whether there is water (and at what depth, if any) in the well itself. If there is water in the water supply source, then the problem can be solved simply: just lower the supply hose or pipe to a deeper injection level. In this case, it is necessary to follow the operating instructions for the pumping equipment in order to subsequently avoid its repair.

The pumping station operates jerkily

A pumping station operating in automatic mode may begin to turn off and turn on frequently, which indicates the presence of malfunctions. This type of operation of the pumping station, in which it is constantly switched off and on, is called jerking. This should be a signal to check (and, if necessary, repair) individual elements of the system.

If the pumping station operates jerkily (it turns off and then turns on), you should measure the pressure in the air chamber of the hydraulic tank. To perform this procedure, you can use a car compressor equipped with a pressure gauge. If this parameter in the air chamber or bulb for the pumping station is below normal, it must be raised using the same auto-compressor. A repeated drop in pressure in the air chamber of the device indicates that a depressurization of the system has occurred, the location of which must be identified. If the joints have lost their tightness, then repair of the hydraulic accumulator is not required; it is enough to simply replace the sealing tape in such places.

To find a leak, apply soap suds to the suspect surfaces. Bubbles will appear in areas of depressurization

The body of the hydraulic accumulator may also lose its seal if a crack or hole has formed in it. Repairing the hydraulic accumulator with your own hands in such a situation is not difficult: to do this, just close the resulting crack or hole using a “cold welding” compound.

Why does the pumping station often turn on and off during operation? The answer to this question may also lie in damage to the accumulator membrane. In such cases, the solution to the problem is to replace the accumulator bulb or such a membrane.

Replacing the membrane in the hydraulic accumulator

Insert and straighten the membrane, install the flange Check the nipple and pump up the pressure Check the pressure after a while

Repair specialists are often asked why the pumping station often turns on or why the pumping station does not turn off when the liquid pressure in the water supply system exceeds the norm. This is usually due to a breakdown or malfunction of the pressure switch. Such malfunctions can also cause the pumping station to not maintain water pressure in the pipeline. Repairing a pressure switch is a rather complicated procedure that cannot always be done with your own hands. That is why, in many cases, the pressure switch of the pumping station is not repaired, simply replacing such a sensor with a new one.

Unstable pressure of the water flow coming from the pumping station

One of the fairly common situations when operating pumping stations is the supply of water from taps in pulsating jolts, which indicates that the water supply system is sucking in air from the outside. To identify where air gets into the pipeline, it is necessary to carefully check for leaks all the connecting elements present in the area located between the well or borehole and the pumping station.

Repairing pipeline leaks using improvised means

If the pumping station does not build up pressure or pumps water into the pipeline in a pulsating mode, this may also indicate that the water level at the source has decreased or that a hose or pipe of the wrong diameter is being used to pump out water.

When choosing a hose or pipe for placement in a well or borehole, you should always take into account that their diameter should be smaller, the lower the suction height of water from the source.

The automatic shutdown system of the pumping station does not work

The question of why the pumping station does not turn off automatically is quite common. A pumping station operating in such a mode, which is considered an emergency, cannot be operated; it should be immediately disconnected from the power supply. Otherwise, you may experience rapid equipment failure, which means that more complex and expensive hydrophore repairs will be required.

Why does the pumping station not turn off for a long time? The reason is incorrect operation or failure of the pressure sensor. A malfunction of this device, which operates in automatic mode, may cause the pumping station to not turn on when the pressure of the liquid flowing through the pipeline decreases. In most cases, this problem is solved quite simply - by adjusting the sensor to the required pressure to turn the pump on and off.

When the nut of the large spring is tightened, the shut-off pressure increases, and the tension of the small spring changes the delta (on-off range of the pressure switch)

The pressure switch may not work properly due to the fact that the elements of its internal structure are covered with salt deposits. In such cases, it is enough to disassemble the sensor and clean its internal parts from such deposits.

The pumping station does not turn on

In most situations, the station does not turn on (and, accordingly, the pump does not work) due to a break in the electrical circuit, oxidation of the elements of the contact group and malfunctions of the pressure sensor. In addition, the causes of problems may lie in a burnt-out winding of the drive motor, as well as in the failure of the starting capacitor.

Checking the electrical contacts of the pressure switch

As a rule, no problems arise with such repair procedures as eliminating breaks in the electrical power supply circuit of the station, cleaning the contacts of the starting device and replacing the capacitor. However, in order to rewind an electric motor, you need to know how to disassemble it and how to replace a burnt winding in it. That is why many users of pumping stations, when the drive motor burns out, simply replace it with a new one, avoiding repairs.

Often, when starting up a pumping station that has not been used for a long time, a characteristic hum occurs, but the equipment does not start working. The reason for this situation is that the pump impeller of the pumping station is simply “stuck” to the body of the device and cannot budge. In this case, it is necessary to partially disassemble the pump of the pumping station and manually move its impeller from its dead center.

How to properly install a pumping station

In order to less often wonder why the pump does not pump water from the well or supplies it incorrectly to the system, serious attention must be paid to the installation of pumping station elements. Correct installation of water supply systems with submersible pumps is no less important, since repairing a deep-well pump or replacing it is also an expensive procedure.

So, when installing pumping stations, you must strictly follow the following recommendations:

• avoid bending and deformation of pipes used for installation;
• ensure absolute tightness of all connections made to prevent air leaks into the system;
• be sure to place a check valve and a filter element on the supply pipe;
• immerse the lower end of the inlet pipe in water in a well or well at least thirty centimeters (in this case, the distance of the end of the pipe to the bottom of the water supply source must be at least twenty centimeters);
• with a significant depth of the water supply source (more than 4 m) and, if necessary, to pump water over a significant distance, increase the design diameter of the pipes used for installation;
• use a water flow sensor and a pressure switch to equip the pumping station;
• locate the pumping station, which is installed on a hard and level surface, next to the water supply source;
• after installing the equipment and connecting it to the water supply system, draw water into that part of the suction pipeline that is located between the pump and the well or well.

Do-it-yourself pumping station repair: causes of malfunction and their elimination

How to repair a pumping station with your own hands. The main causes of malfunctions of the water pumping system. Tips for installing a pumping station.

Each equipment has its own operating life. If there are no manufacturing defects and proper connection, the pumping station will work for a long time. If errors were made during installation or mechanical deformations of the pipeline occurred, the pumping equipment will begin to operate intermittently. Any deviation must be diagnosed immediately to prevent final breakdown. Some parts are expensive - it is easier to buy a new device than to repair an old one.

Operating principle of the pumping station

The pumping station consists of three main components - the pump itself, the battery, and the control unit. In home systems, surface pumps are most often installed, which extract water through a hose or pipe. The housing and automation elements are outside the liquid. A battery is a container with a sealed rubber bulb inside. When fluid is added, the rubber stretches, maximum pressure is created and the motor turns off. The container delivers water through pipes to intake devices in the house. An automation unit with an attached pressure gauge regulates the pressure. If the pressure drops, then at its lowest point the engine turns on again and the pump begins to pump water. This operating mode protects the device from overheating and premature failure.

Changes in operation in one of the nodes entail problems in other parts of the equipment.

The pump pumps water without interruption

There are several reasons why the pumping station does not turn off after drawing water. One of them is clogging of the inlet hole in the pressure switch housing. Before you start looking for a more serious cause, you need to check whether debris has gotten into the automation unit and whether it is preventing the contacts from operating. Contact oxidation is also possible. The block is disassembled, the contacts are cleaned and everything is reassembled in the reverse order.

The second reason is fluid leakage. In this case, the pressure cannot rise to its maximum value, which prevents the contacts from operating to turn off the equipment. Most often, leaks occur in the battery pack. If you lubricate it with soapy water or shaving foam, you can determine the location of the leak. To seal, it is necessary to degrease the area and solder. A leak may occur due to a violation of one of the joints of the main line. Water will constantly flow out of the crack - in order to maintain the required pressure, the pumping station will have to work continuously. You need to look for the problem area right away, as the engine can burn out due to constant overloads and lack of cooling.

A drop in the water level in the source leads to the fact that liquid does not flow through the suction pipe, which is why the pumping station does not build up pressure and the device does not turn off. To troubleshoot problems, you need to lower the suction hose deeper. If the groundwater has completely disappeared, you will have to look for a new location for the well.

One of the common reasons for untimely engine shutdown is a rupture of the rubber membrane inside the accumulator housing. This could be a manufacturing defect or incorrect relay settings. At a very high upper pressure threshold, the rubber cannot withstand it and bursts. The problem can only be fixed by installing a new membrane and adjusting the relay.

A damaged rubber membrane can be vulcanized. To do this, it is removed, repaired and put back.

If there is a filter at the inlet and it is clogged with clay/sand particles, the station may not turn off for a long time until it collects water and the pressure rises to the required level. In this case, the filter needs to be cleaned or replaced.

Water does not flow into the pipes when turned on

The reason may be wear on the impeller. In this case, the station will operate continuously, and water will not flow. Sometimes the internal parts in cheap pumps are made of plastic. They wear out quickly when exposed to sand or stones. It is desirable that the impeller be metal.

The engine is disassembled and inspected. If signs of abrasion are visible on the edges, the impeller needs to be replaced.

Water flows in spurts

One of the reasons for breakdowns of pumping stations is well drying out

Reasons why the pumping station operates jerkily:

• well drying out;
• surges in pressure or voltage;
• membrane damage;
• errors during well construction.

If air gets into the pump along with the water, this will lead to an uneven supply of liquid to all distribution points located in the house.

A clogged pumping station causes work to stop. At the same time, the pressure drops and particles of debris come off from the inlet. The device turns on again and draws in dirt, which again causes the engine to stop. At the same time, water will flow in the house in spurts.

If from the very beginning the equipment operates unevenly, then the entire line is installed incorrectly - there are leaks. You cannot fill the pipes with soil until the pump has been tested, otherwise you will have to dig it up again and inspect the entire area.

They also check that the pipe diameter matches the suction height. At the same time, it is necessary to check the well to see if its productivity has decreased - it may be necessary to clean it of silt.

Air leakage may be observed in the area from the suction to the inlet pipe. In this case, the pumping station works, but supplies water in spurts. The situation is corrected by deepening the pipe into the well. If it doesn’t help, then the seal of the suction pipe is broken - it is taken out, checked and repaired.

The pump does not turn on

First you need to check if there is voltage in the network. The device must be turned off if the stabilizer is not connected, so that the motor does not burn out.

Sometimes contacts burn out. To resume operation of the station, they need to be cleaned with sandpaper. The device must be de-energized at this moment.

The biggest nuisance is a burnt out engine. If you smell the smell of burnt insulation, the motor will have to be replaced. It is very expensive to change the winding at a service center, so experts recommend buying a new motor. If possible, purchase a new pump. If there is a crack in the bearing or failure of the capacitor, the pumping station will also not work - it is necessary to replace the damaged parts.

When idle for a long time, the impeller sometimes sticks to the housing and cannot move on its own. To do this, the device is disconnected from the network and the impeller is manually turned.

The station turns on and off frequently

If a pipeline in the ground is damaged, pumping equipment may turn on and off more often than expected. When turned on, the necessary pressure is created in the system and the liquid enters the storage tank. In this case, part of it goes into the ground due to cracks or kinks in the pipe. If all components of the station are working normally, the problem must be looked for in the pipes. To do this, they dig up the entire highway and look for leaks. This can take a long time, so before starting excavations on the site, all other causes must be ruled out.

When the power supply is insufficient, the equipment is forced to constantly turn on so that the impeller can reach the required speed to pump water into the system. The cause may be either the power source or the mechanical or electrical part of the device. The inlet and outlet pipes become clogged after prolonged use, so they are washed with a cleaning solution. Unstable voltage in the home network causes uneven operation of the pump. Check the voltage indicator while the station is running. If necessary, install a stabilizer.

During long-term use, the storage tank may have microcracks through which liquid escapes. It is not advisable to carry out repairs - it is better to replace it completely.

A pressure of about 1.5 atmospheres is created in the accumulator. When the rubber membrane is filled with liquid, the pressure increases and squeezes water into the pipes. If air escapes due to cracks, the required pressure does not arise. Cracks in the steel structure can be welded or the container can be replaced.

Ejector failure

Pumping equipment with an ejector allows you to get water from great depths - up to 45 meters, but there are also problems with it. Most often, stones get inside, and there is no circulation of liquid in the pipe. In this case, it is necessary to remove the pipes and clean them of accumulated debris, and then rinse them with a strong stream of water. This happens when it's time to clean out the well, so it is recommended to call a drilling crew that has the appropriate equipment.

If the ejector breaks down or becomes clogged, it is impossible to lift liquid from a great depth, so the equipment will turn on, but the water will not reach the surface.

The equipment works, but there is no water

First of all, check the check valve. Dirt, sand, clay gets into it, so it can jam and water will not get into the suction pipe. Sometimes after a long period of operation the valve needs to be replaced.

If there is no liquid between the pump and the well, the device cannot start. There is a filler hole in the housing - it needs to be filled with water.

Sometimes the equipment doesn't want to work from the very beginning. It is possible that errors were made when calculating the power and the pump does not correspond to the depth of the well. In this case, they change the device - its parameters will not be enough. The characteristics of the electrical network also affect the operation of the device. If it is designed for a three-phase network, you will have to change the electrical wiring.

A simple blockage can also block the flow of fluid. Before this, the quality of the water usually changes - it contains foreign impurities. The pressure decreases gradually until it stops completely. First you need to disconnect the outlet pipe and turn on the device - if liquid flows, then the blockage has formed in another part of the system, perhaps at the entrance to the home network, where the diameter of the pipe changes from large to small.

If water does not flow from the pumping station, it means that a plug has formed in the valve or suction pipe.

The equipment can pump liquid from the well, but along the way the water leaves. First, check the connections between the pump and the pipeline, as well as the entry point of the line into the home system.

To make it easier for craftsmen to understand, it is necessary to know what material the underground pipeline is made of and how old it is:

• old metal pipes are susceptible to corrosion, which causes holes to form;
• plastic non-insulated structures can freeze and burst.

If part of the plastic line runs in the open air, this can also cause damage to the structure. Almost all types of plastic without a protective coating are afraid of ultraviolet radiation.

Changing a section of pipe takes several days, so it’s worth thinking about where to get water while workers find the problem and fix it.

Malfunctions in the pressure switch

Pressure switch device

Most problems during the operation of a pumping station are associated with incorrect relay settings or its breakdown. The essence of the pressure switch is that it is capable of closing and opening the network when reaching the limits set at the factory settings.

Reaching the lower limit, the circuit closes and the device turns on; when reaching the upper limit, the circuit opens and the pump stops pumping water. The operation of the relay is accompanied by a characteristic click.

The moment of switching on and off can be adjusted manually. To do this, you need to tighten or loosen two springs:

• The first one is large and is responsible for the moment of switching off. By twisting it clockwise, you can increase or decrease the pressure at which the device turns off. For example, if previously the device turned off at 3 bars, after winding it up it will turn off at 3.5.
• The second spring is smaller. It is responsible for turning on and shows the difference between the upper and lower values. Factory settings show a value of 1.4 - 1.5 bar.

If the difference in values ​​is small, the station will turn on frequently. This can lead to rapid engine failure due to overheating. Otherwise, if there is a large difference, the water pressure in the tap may be reduced to a minimum, which is inconvenient when using the shower, and also affects the operation of the washing machine.

After setting the relay, you need to pump air into the accumulator using a simple bicycle or car pump with a pressure gauge. To do this, the station launch indicator, for example 1.8 bar, is multiplied by 0.9, resulting in a value of 1.62 bar. Pump air inside and check with a pressure gauge.

A pumping station is an excellent solution for organizing water supply in a private household. An unexpected breakdown of this set of devices can cause owners a lot of trouble. Fortunately, most breakdowns are typical and can be fixed at home. You should learn in advance how to repair equipment yourself. This is what we will talk about now - stay with us and you will learn a lot of new things!

How to ensure stable operation of the water supply system

In order for the plumbing system to function successfully, it is necessary to provide a certain level of pressure and water pressure. When there is no access to centralized water supply, this problem is easily solved using a pumping station. It usually consists of:

• pump;
• membrane storage tank;
• automatic control unit (pressure switch, pressure gauge, etc.).

The pump pumps water, which enters the tank. When the pressure in the tank reaches a certain maximum level, the pump turns off. Gradually, the water from the tank is consumed for various needs and the pressure drops. At a minimum pressure level, the pump turns on again and water flows into the tank. The process is controlled automatically.

With the help of such a unit, you can provide water supply to a house, bathhouse and other buildings located on the site. Having studied the principle of operation, you need to begin studying possible breakdowns and ways to eliminate them.

Having studied the principle of operation and the design of the pumping station, you can repair it yourself

Common causes of pumping station breakdowns

In the world, as the classics rightly say, nothing lasts forever, this also applies to equipment. Unexpected malfunctions in the operation of pumping equipment; its stop or incorrect operation can be caused by a number of reasons, such as:

• lack of electricity;
• lack of water in the system;
• pump failure;
• breakdown of the membrane tank;
• damage to the automatic unit, etc.

The design of household pumping units is not particularly complicated, and this allows you to do the repairs yourself. In some cases, you need to disassemble the pump and replace the damaged part. Sometimes it is necessary to seal a crack in the tank, and sometimes it is enough to simply check the availability of electricity. In each specific case, you need to determine why the pump does not pump water and find a “recipe” for solving the problem. If you cannot find an acceptable solution to the problem, you need to contact specialists.

Typical faults and their elimination

Below we will consider a number of problems and malfunctions that may arise during the operation of a pumping station.

The pump rotates, no water enters the system - the check valve is not working properly

Cause: The tightness of the conductive pipelines is broken, the check valve is not working correctly, there is no water in the pipeline or pump.

Solution to the problem: First, you should check the presence of water in the pipeline or pump. If it is missing, you just need to add it to the pump through the hole provided for this or lower the suction hose (or the pump itself) deeper. The maximum permissible distance between the pump and the water level must be maintained.

Now you need to check the condition of the check valve and the tightness of the joints, and then eliminate the detected problems. If all these measures do not help, the pump may be damaged by abrasives that have gotten into the water, for example, sand. In this case, you will have to disassemble the pump and replace its impeller or housing. In some cases, it is necessary to install a new pump.

Please note that before starting work it would not hurt to check the voltage in the electrical network. If it is insufficient (a typical situation in rural areas), the pump will not pump water, although it will turn on.

The station operates jerkily - the hydraulic tank is damaged

Cause: The answer to the question why the pumping station turns on too often is most often that some part of the hydraulic tank is damaged. Because of this, the equipment does not build up pressure.

The hydraulic tank of the pumping station consists of a housing and a membrane located inside

Solution to the problem: First you need to press the nipple located on the back of the tank. If water flows out of it (air should come out), then the inner membrane is torn and should be replaced.

Another possible reason why the pressure in the unit’s hydraulic accumulator does not correspond to the normal value is a violation of the seal of the housing. You need to find a crack or hole and seal it. Sometimes, to solve the problem, it is enough to simply pump the missing amount of air into the tank using a conventional pump. The standard value of pressure in the tank is 1.5-1.8 atmospheres.

The missing air can be pumped into the membrane tank through a standard threaded fitting with a spool valve

It should be noted that sometimes water flows intermittently due to a leak in the joints of the suction pipeline. It must be checked along its entire length and any cracks found must be repaired.

Video: do-it-yourself hydraulic tank repair

Doesn't turn on

Cause: There is no power supply.

Solution to the problem: It is necessary to check and possibly clean the burnt contacts of the pressure switch, and check the integrity of the winding. The fact that the engine has burned out will become clear from the smell characteristic of burning insulating materials.

It turns on but does not rotate - the reason is the capacitor or impeller

Cause: the condenser is broken or the impeller is “stuck” to the pump body. This situation often occurs with pumps that have been sitting idle for several months.

Solution to the problem: To start a blocked impeller, you just need to turn it by hand a couple of times. After this, the pump should turn on. If the capacitor is broken, it will have to be replaced.

The unit does not turn off and works constantly - the relay is not adjusted

Cause: The pressure switch is malfunctioning.

Solution to the problem: Required. To do this, use two springs located on the relay: large and small. The large spring is responsible for regulating the lower pressure limit, and the small one regulates the difference between the minimum and maximum values. All manipulations with the pressure switch must be done extremely carefully.

To find out the reasons why the equipment does not turn off, you should definitely check the condition of the pressure switch inlet. Sometimes it becomes clogged with particles and sediments contained in the water. In this case, the hole must be cleaned and the operation of the pressure switch checked.

A few words about adjusting the pressure switch

It should be remembered that the regulation of the pressure switch of the pumping station must be treated with great care. If this unit is not adjusted correctly, it can lead to serious damage to the entire station, and the manufacturer's warranty does not apply to such cases.

First you need to achieve the correct pressure in the accumulator. To do this, the device is disconnected from the network, and the water is completely drained from the tank. Then, using a pump with a pressure gauge or a household compressor, the required level of pressure is created in the hydraulic tank. Now you need to unscrew the plastic cover on the pressure switch to gain access to the control springs.

The minimum pressure to turn on the pump is adjusted using a large spring (2, see figure). Turning the spring clockwise increases this indicator, and turning it counterclockwise decreases it. To set the required range between the maximum and minimum pressure limits, rotate the pressure differential adjustment spring (1, see figure). Turning the nut clockwise expands the range, while turning it counterclockwise narrows it.

The pressure switch of the pumping station is regulated by a large and small spring

Then the pressure switch cover must be replaced, fill the pumping station with the required volume of water and connect the power supply. The maximum pressure value in the system should be no more than 95% of the maximum possible outlet pressure, which is indicated by the manufacturer in the data sheet.

Video: how to adjust the water pressure switch

Knowing about these malfunctions, you will be able to figure out in time why the pumping station is not working and fix the problem yourself.

Reading time: 6 minutes.

Anyone who knows firsthand what a pumping station is and uses it for a private home, farm or industry, sooner or later may encounter the fact that it does not turn on or turns off quickly, often turns on and off, does not pump water or does not provide required pressure.

Any malfunction must be corrected promptly to extend the life of the installation. To find out the causes of the breakdown and decide what to do to eliminate them, you can disassemble and reassemble the pumping station with your own hands.

Basic problems with pumping stations

The first start-up of the pumping station is of great importance. Provided that the pumping station was assembled and connected in accordance with the manufacturer’s recommendations, it is he who can identify manufacturing defects, which is extremely rare, and identify the main shortcomings of the system as a whole.

Before starting up the pumping station, make sure that it is securely fixed, all joints are sealed, and water is supplied to the system again before starting up.

In most cases, repair of the pumping station is not required, since the reason for incorrect operation is not a breakdown as such, but problems in the system itself. We will look at the main malfunctions of pumping stations and their elimination.

The most common problems can be divided into several groups:

• the pumping station does not pump water when the engine is running;
• the pumping station does not turn off;
• the installation operates jerkily;
• lack of torque when the engine is running;
• The pumping station does not hold pressure.

It should be noted that you can repair a pumping station yourself if you know how to replace components and use spare parts recommended by the manufacturer.

How can you tell if a station needs repairs?

Repair of the pumping station is required if during the diagnostic process you have not discovered or eliminated all possible causes of malfunctions, but the system still does not work correctly.

The greatest number of problems arise if you use equipment with a submersible pump, since diagnosing such equipment requires a lot of time and effort. Signs of the need for possible repairs may be the fact that the pump does not rise, problems constantly arise in drawing water, and the system randomly shuts down.

We will look at the causes and ways to eliminate typical faults.

Why doesn't the pump pump water?

The pumping station does not pump water if:

• air enters the cavity of the suction line;
• the water intake source has a very low water level;
• The check valve is dirty or faulty.

The first type of failure can be eliminated by checking the sealing of all connections. To do this, you need to completely turn off the system, unscrew the filler plug and bleed out the air. Next, you need to resume the water supply and turn on the system.

If the pump cannot pump water due to problems with the level in the water intake area, it is recommended to check that the intake pipe is installed correctly. You should also take into account the fact that due to some geological changes the water goes deeper - in this case it will not be pumped by definition.

The pumping station does not pump even if the check valve becomes clogged. This may indicate poor water quality or incorrect pump selection.

Why does the pumping station not turn off for a long time?

Checking the pumping station will help you understand why the pumping station does not turn off. As practice shows, in most cases the cause may be too high a pressure setting; the problem can be solved by adjusting it.

Another reason causing a malfunction of this nature may be too little water pressure in the system. In this case, it can be equipped with a household booster pump.

Why does the pumping station often turn on and off?

The answer to the question why the pumping station often turns on may be a breakdown of the pumping station tank (leaking) or its insufficient size - that is, water is consumed too quickly, the pumping station does not meet operational requirements.

To identify a hole in the tank body, press the nipple, which is located on its reverse side - only air should come out of the hole. The appearance of water in the hole indicates a membrane rupture. It cannot be repaired - it needs to be replaced.

The pressure in the pumping station also drops if the seal of the housing is broken and the installation cannot pump a sufficient amount of water and operate correctly.

Why is there no torque?

This problem occurs due to a broken capacitor or gluing of the impeller directly to the housing. The problem is typical for equipment that has been at rest for a long time. To start the impeller, rotate it manually several times around the axis; if the capacitor fails, replacement is required.

Why doesn't the pumping station gain pressure?

The problem indicates that the water pressure regulator is set too low. Eliminating it is simple - enough. The pressure regulator for the pumping station operates in the range of 1.5-3 atmospheres. To change settings, unplug the system and drain the water completely. Next, remove the cover and change the tightening force of the corresponding springs.

Rules for disassembling a pumping station

Do-it-yourself maintenance and repair of the pumping station must be carried out taking into account the manufacturer’s recommendations.

The main rule is to completely disconnect the system from the energy source and remove water or other liquid from the entire pipeline system.

All work is carried out in compliance with safety regulations and using the appropriate tools.

Repair stages

Do-it-yourself repairs, regardless of whether they are professional or professional, are carried out in several stages - turning off the system, draining the water, dismantling the pump, disassembling, replacing failed spare parts, assembling.

Disassembly order:

• disconnect the expansion tank and dismantle the pumping unit;
• remove the body, having first unscrewed all bolted connections;
• secure the shaft by removing the cover and fan from the rear of the motor
• disconnect the impeller by unscrewing the fastening screw;
• after dismantling the impeller, you have access to the oil seal; to remove one of its two components, remove the fastening ring;
• disconnect the electric motor from the console;
• remove the second component of the oil seal - the oil seal can now be replaced.

The pump must be assembled in the reverse order; the assembled unit is connected to the system, after which a test run is performed.

DIY pump station repair (video)

When starting up or operating a pumping station (crazy), sometimes malfunctions occur due to which it works poorly or stops pumping water altogether. In this article we will look at what could be the reason when the crazy pump does not work or works poorly - the most common malfunctions of the pumping station, their causes and how to fix them yourself.

The pumping station does not gain pressure

If the pumping station does not gain pressure, that is, the turret turns on, works, but cannot reach the set maximum (upper) pressure and, accordingly, does not turn off. The reason for this may be:

• insufficient pump power or wear of its parts;
• water leakage from the system through connections, pipe rupture or plumbing fixture;
• voltage drop in the electrical network;
• air entering the suction pipe of the surface pump.

Now let's look at them in more detail, as well as ways to eliminate them.

Does not gain pressure due to insufficient power or wear of parts

This may be the case if the pump or pumping station is not selected correctly and, according to its characteristics, cannot achieve the specified pressure under these specific conditions: the height and volume of water supply from a well or well, the height and location of plumbing fixtures, the diameter of the water supply system pipes and etc.

In addition, if the pumping station has been in operation for a long time, the cause may be wear of its parts. For example, in a centrifugal pump this may be wear of the impeller and housing or a crack in the plastic funnel (diffuser), and in a vibration pump it may be wear of the rubber valve. In this case, the pump will supply water, but the performance and pressure will not correspond to its original characteristics and it simply will not be able to create the specified maximum (upper) pressure and will work without shutting down.

In order to eliminate the first problem, it is necessary to replace the pumping station with a new or more powerful one, selecting the necessary characteristics, or reduce the specified maximum pressure to a level that it can provide. If parts wear out or break, replace them yourself or take them to a workshop for repairs.

Does not gain pressure due to water leakage from the system

Sometimes, a crazy person cannot gain pressure due to water leaking from the system. This could be a rupture of a pipe or its connections, a faucet or mixer left completely open, a faulty toilet flush, etc. Therefore, if the pumping station has been running for a long time, cannot build up pressure and therefore does not turn off, you need to turn it off yourself, inspect all elements of the water supply system at home and if the above reasons are found, eliminate them.

Insufficient mains voltage

Another reason that the crazy pump does not gain pressure may be a voltage drop in the network, during which the pump cannot develop its full power.

In this case, it is necessary to measure the voltage in the network and if it is less than 220 V, turn off the pumping station, find out the cause of the voltage drop and take measures to normalize it.

Air in the suction pipe

This can happen when using a pumping station with a surface pump without an ejector, in the case when:

• the water level in the well or borehole will drop to the location of the check valve;
• there has been a leak in the pipe or its connection to the pump.

It is necessary to check the water level in the well or well and the tightness of the pipe and its connections.

The pumping station does not pump water: possible malfunctions

Firstly, this can happen if she won't turn on(you turn on the station and it is silent). In this case:

• it is necessary to check whether there is voltage in the network, and whether it is supplied to the pressure switch and the crazy pump;
• if there is voltage in the network, it is necessary to check the corresponding circuit breaker in the electrical panel, as well as the integrity of the cable and the voltage supply to the relay. To do this, you can remove its cover and use a probe or tester to find out whether electricity is supplied to its contacts and whether they are burnt;
• if voltage is supplied and the contacts are not burnt and they close and open (that is, the relay is triggered), then the reason may be a malfunction of the electric motor of the pump - the terminals under the boron cover are burnt or the integrity of its winding is damaged, that is, as they say: “the motor burned out” , which can be determined by the characteristic smell of burnt insulation. If the reason is in the electric motor, then it is better to have it repaired by a specialist or replaced with a new one.

If you're crazy turns on, but doesn't pump water, then there may be several reasons, depending on its type.

Turret with surface pump (standard version)

If a pumping station with a surface pump does not pump water, then given that it can be equipped with a different type of unit (without an ejector, with a built-in or remote ejector), the reasons may be different. But most often, the following malfunctions may occur:

Now let's look at these faults and ways to eliminate them in more detail:

1. The bezbashenka does not pump water due to lack of water in the suction pipe. Before the first start-up of a pumping station with a surface pump without an ejector, the suction pipe and the pump itself must be filled with water, otherwise it simply will not be able to pump water from a well or borehole. If water was filled before start-up, but it later turned out that it was not there, this means that the water goes back into the well or well through a check valve or joints. To eliminate this malfunction, it is necessary to check the check valve and its connection location, as well as the location of the pipe connection to the pump or filter.
2. The tightness of the suction pipe connection is broken. If the connection of the suction pipe to the station is not tight, then air may be sucked in. In order to make sure that there is no such reason, it is necessary to wipe dry and inspect all connections. If the connection is not tight, it will leak if there is water in the pipe and pump. It is necessary to check all connections that are on the suction pipe. If a filter is installed at the inlet, you need to check it too.
3. The check valve filter or the valve itself is clogged. It may be that the reason that the crazy one does not pump water is that the check valve strainer or the check valve itself is clogged. This can happen, for example, if the well is not deep or has not been cleaned for a long time, and the suction pipe is lowered too low and the check valve is clogged with deposits of sand, clay or silt. In this case, it is necessary to lift the suction pipe together with the check valve and clean its filter.
4. The water level in the well or borehole has decreased. A possible reason that the pumping station does not pump water may be a decrease in its level in the well or borehole. If the water level has dropped so that the lower end of the suction pipe with a check valve is in the air, or the distance from it to the level of the pump suction pipe is more than 7-8 meters (depending on the characteristics of the pump), then it’s crazy if it is without a built-in or remote ejector, water will not pump. With a built-in ejector, the station can pump water from a depth of up to 9 m, and with a remote one - up to 40 m. If the check valve at the end of the suction pipe is in the air, then it is necessary to lower the pipe lower, and if the water level in the source (well, well) below 9 m - use a deep-well pump or with a remote ejector.
5. The pump impeller is jammed (“stuck”). Sometimes, after a long break in operation or for other reasons, the electric motor cannot turn the pump impeller when starting. Disconnect the station from the power supply and try to scroll it manually several times. If it is “stuck” due to prolonged inactivity, then this is enough for the pump to start working.
6. The capacitor has failed. When turned on, the pump electric motor will make a sound different from a normal operating one (it cannot start, as in step 5), while its rotor and the pump impeller will not rotate. If turning the impeller does not do anything, then you need to check the capacitor, there may be a problem with it and, if necessary, replace it with a new one.
7. Worn or broken pump parts. Due to the content of abrasive particles in the water, wear of the impeller and pump housing can occur. In this case, it may begin to work “on its own” - it will not create the necessary pressure, and in order to eliminate this malfunction, you will have to change the housing and impeller or completely replace it with a new one.
8. Very low line voltage. If the voltage in the electrical network is too low, the pumping station will seem to work (that is, make operating noise), but it may not supply water. At the same time, the sound of the crazy machine itself may differ from the usual one. In this case, it is better to turn it off and identify the cause of the decrease in voltage in the network.

Reckless with a deep-well pump

If water is not pumped by a pumping station with a deep (submersible) pump, then the malfunctions may be as follows:

Now in more detail:

1. Pump faulty- this may be one of the reasons that the pumping station does not pump water. It may not work at all, in which case there is a problem with its electrical part, or it may make a working sound, but not pump water. To determine this, you need to disconnect the pipe from it, lower it into the water and turn it on. The cause of such a malfunction in centrifugal submersible pumps may be wear of the impeller or housing elements due to abrasive particles, and in vibrating pumps it may be wear of the discharge valve or breakage of its axis (core). In order to eliminate such faults, you need to send it in for repairs or do this work yourself if you are confident in your abilities and that you can do it yourself.
2. Broken connection between pipe and pump. Sometimes it happens that the reason that the crazy one does not pump water may be a spontaneous disconnection of the pipe from the pump or check valve in the well or well. This can happen due to a pipe rupture at the connection point or a loose clamp, or as a result of an insufficiently reliable connection during installation. This is easy to determine: when working in a well or borehole, the pump will emit a fountain of water. In order to eliminate this malfunction, it will be necessary to reconnect the pipe securely.
3. Rupture of a pipe underground between a well (well) and a house. In some cases, the cause may be a rupture of a pipe or its connections underground in the gap between the well or borehole and the house. This is one of the most unpleasant reasons, since to eliminate it you will have to dig up the pipe and repair or replace it.
4. Reducing the water level in a well or borehole, that is, a decrease below the installation depth of the submersible pump (its suction valve). True, the pumping station will not be able to operate for a long time in this mode - the pump will fail. Therefore, it is necessary to monitor the water level or use deep-well pumps that have special float switches that turn off the unit when the water level drops critically, or use a relay with dry-running protection.
5. Very low voltage in the electrical network. If the voltage in the network is insufficient, then a crazy pump with a deep pump, as well as with a surface one, can work, but not pump water. If this continues long enough, it may cause the latter to fail.

The crazy thing doesn't turn off - it doesn't turn off automatically

The pumping station does not turn off if it cannot reach the set maximum pressure in the water supply network (switch-off pressure) or the pressure switch is incorrectly adjusted or faulty, which does not turn off the pump when the set maximum pressure is reached.

In the first case, the pumping station may not be turned off for the following reasons:

• water leak through connections, plumbing fixtures or pipe rupture in a volume equal to or greater than the capacity of the station pump, so the pump pumps, but cannot raise the pressure in the system to the specified maximum level and the relay, naturally, does not operate;
• very low voltage in the network and the pump cannot develop the necessary power to achieve the set upper pressure;
• malfunction mechanical part of the pump;
• air entry into the suction pipe of a surface pump without an ejector;
• relay is faulty.

If the pumping station does not turn off when the maximum pressure is reached, then the reason is the pressure switch. You can remove the cover of the pressure relay and inspect the contacts (whether they are burnt or can open) or try to loosen the nuts on the regulators somewhat; they may be too tight, which may also be the reason the relay does not operate. The relay inlet and membrane may be clogged. In order to check this, you need to relieve the pressure in the system and unscrew the nut and remove the relay. If this does not help, replace the relay with a new one.

If the station does turn off, but it takes much longer to reach maximum pressure (shutdown) than before, then it is possible:

• does not allow water to pass through well check valve(clogged or faulty);
• the mechanical water purification filter installed in front of the crazy tank is clogged;
• small water leak in the system (less than pump capacity);
• malfunctions in the mechanical part of the pump.

The crazy thing works in jerks - it sharply gains and releases pressure

If the pumping station operates jerkily, that is, it turns on frequently and abruptly and also stops every time a tap or other plumbing fixture is opened, then this may occur for the following reasons:

• the integrity of the rubber chamber-membrane is damaged(“pears”) in a pumped storage tank;
• no air pressure in a hydraulic storage tank with an intact membrane;
• relay is faulty pressure of the pumping station.

If the integrity of the membrane chamber in the tank is broken, then water will fill that part of it that is intended for pumping air. To find out, just press on the spool core of the fitting intended for pumping air. If, when pressed, water begins to flow out of the fitting, it means that the integrity of the membrane has been compromised and will have to be replaced with a new one.

If water does not flow from the fitting, it is necessary to check and use a pump to raise the air pressure to the required level: 10% less than the minimum pressure in the system (turning on the pump).

If the membrane is intact and the air pressure is normal, then the reason that the pumping station operates jerkily may be a faulty operation of its relay. You can check whether the inlet is clogged and whether the wires are securely fastened in the terminals. If the cause cannot be identified, it is better to replace the pressure switch with a new one.

The crazy guy can't hold the pressure

If the pumping station does not maintain pressure, that is, it decreases, even if at this time there is no flow of water from the water supply system of the house, then this indicates that somewhere in the system there is water leak.

First of all you need to check check valve– does it allow water to flow back into the well or borehole. Solids may become lodged in the valve, preventing it from closing completely, or the spring may weaken.

If you are convinced that the check valve is working properly, it means that the leak is occurring in the system itself. Need to check integrity of pipes and their connections, as well as connection points for shut-off valves and plumbing fixtures.

Also, they can pass water themselves plumbing fixtures: taps, mixers, toilet flush, etc.

Reckless often turns on

Possible causes and solutions:

1. The pumping station often turns on if air pressure in its hydraulic storage tank very low or absent at all. In this case, the pumping station will turn on at every, even small, flow of water from the water supply system. Since the liquid is practically not compressible, the lack of air pressure in the tank will lead to the fact that immediately, with any opening of the tap or mixer, the pressure in the system will rapidly drop, which will immediately entail turning on the pumping station. When you close the tap, on the contrary, the pressure instantly rises and the pump immediately turns off. Measure the air pressure in the hydraulic storage tank and, if necessary, add to the required level: it should be 10% less than the lower pressure (pump activation).
2. Another reason that the crazy machine often turns on may be destruction of the hydraulic storage tank membrane. In this case, water will come out of the air injection fitting when you press on its core. The membrane chamber can be replaced by first disconnecting the front flange of the tank, which is secured with bolts. When installing a new membrane, it is advisable to cover the points of its contact with the tank and flange with silicone sealant.
3. The third possible reason for frequent switching on, if the membrane is intact and the air pressure in the tank is normal, may be that pressure switch adjustment is broken- the difference between the pump switch-on and pump-off pressures (Δ P) is set too small. In order to increase the difference, you need to tighten the nut on the smaller of the two regulators clockwise.

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Pumping station malfunctions video