DIY water pumping station repair

In detail: do-it-yourself repair of a water pumping station from a real master for the site my.housecope.com.

Do-it-yourself pump station repair is one of the best options for getting out of a situation when some problems arise in it. Today the water supply equipment market is oversaturated with offers for every taste. Two water supply systems have positive reviews about reliability - the Marina pumping station and the Jileks station, the structure of which is identical.

Owners of their own water supply system on the territory of a private house or summer cottage often face various kinds of malfunctions. Basically, pumping stations contain the following elements:

water pump;
hydraulic accumulator;
relay;
pressure gauge.

The main task of the water pump is to take water from the right source. Surface pumps installed either in special rooms of the house or in caissons adapted for this are popular among consumers. The pump must have sufficient power to lift water from the well, move it to the house and lift it to the upper water-tipping point of the housing.

An important component is a hydraulic accumulator (storage tank) with a capacity of 20 liters or more. A hydraulic accumulator is a metal container, the task of which is to maintain constant pressure in the station pipelines. A successful model of a battery in the form of a metal balloon with a rubber membrane inside. The membrane stretches and goes back to its previous position, depending on whether the pumping station is running or not.

The relay turns on and off the pump, determining the need for its operation by the water level in the tank. The pressure gauge is designed to indicate the pressure level in the water supply system. The presented set of units and equipment of a water supply station can work as a single system, and each individual element can work on its own. On the market niche there are ready-made pumping stations in the form of a pumping device installed on a pressure accumulator. The single frame also contains an automatic control device.

Video (click to play).

The operation of the pumping station is carried out according to the following scheme: receiving power from the source, the suction pump begins to draw water, the water goes into the tank, filling it to a certain level, after which the pressure switch stops the suction device. When a person consumes water, the liquid level in the membrane tank drops, the pressure switch gives the command to implement the water intake process again.

Usually, when buying a pumping station, a warranty period is indicated. And what to do when the pump does not pump water after such a period has expired? There are certain approaches to performing work related to the failure of the station, allowing you to find the cause of the breakdown, and ways to repair the pumping station with your own hands. In many cases, this does not take as much time as it might seem at first glance.

The first step is to check the tightness of the pipes and the presence of water in the system. When there is no water, the cause could be a malfunction of the check valve located between the head of the well and the inlet pipe of the pumping station. This part stops working as a result of clogging of the valve with foreign objects. The unsuitability of the spring that controls the operation of this element is also being considered.

Clogging of the valve is eliminated by cleaning it after removal, and if it breaks down, you need to completely replace the check valve, but this will require a significant amount.With a prolonged downtime of the pumping station, a situation arises of the disappearance of water at the junction of the well and the pump. A special fill hole eliminates the problem.

If there is a seasonal drop in water level problem, the solution is to place the pump inlet circuit deeper into the well shaft. Deep immersion of the inlet circuit increases the likelihood of clogging; to prevent this, a filter is installed.

Insufficient voltage in the network is also the reason for the lack of water flow when the supply system is running. This is determined by the power supply tester. The wear of the pump blades is eliminated according to the following plan:

disassembly of the pumping device using a special tool to facilitate removal;
inspection of the impeller condition, if necessary - replacement of a broken blade;
if it is impossible to replace a broken part (it all depends on the manufacturer), the pump completely changes.

When the pump is turned on frequently, the water supply is jerky. The reason is a breakdown in the operation of the automation unit (pressure gauge). The pressure gauge measures the pressure. The readings of this element can drop sharply, then the water will flow in jerks. This happens if the membrane of the pressure accumulator, which changes its size depending on the volume of water, has become unusable.

Breakage is determined by pressing the nipple, which makes access to the membrane. When air leaves it, it is serviceable. In case of water ingress, the membrane of the accumulator must be urgently replaced. To change the element, it is necessary to disassemble the battery case by unscrewing the bolts.

When it was found that the pump does not pump water, one of the reasons may be that the pressure in it is not correctly adjusted. The problem is eliminated according to the following scheme:

the pumping station is turned off from the mains;
water is drained from the water tank;
the air pressure in the tank is measured through the nipple by an automobile pump with a pressure gauge or compressor, its optimal value is 90-95%;
air is pumped into the water supply system.
water is poured into the station;
connects to the network with pressure control.

The air in the water supply system is pumped as follows. The cover with the pressure switch is removed by removing the plastic screw and changing the tightening force of the existing springs of the assembly. By turning one nut, the lower value of the pump is switched on. Clockwise rotation increases the pressure, while counterclockwise rotation causes the pressure to decrease.

Turning the other nut adjusts the pressure range between the lower and upper limits. The boundaries of the range are changed by rotating the element clockwise to expand, counterclockwise to decrease it. After the steps taken, the pumping station is connected to the power grid, and its performance is checked.

There are several more types of pumping station breakdown. For example, there is a constant injection of water, it happens when the regulation relay stops working due to wear. To eliminate the malfunction, it is necessary to clamp the stretched springs of the relay and, if necessary, clean it from clogging.

When the pump does not pump water from the well, the first step is to check if there is electricity in the circuit. If everything is in order, the cause of the malfunction may be the winding of the electric motor. In case of breakdowns in the winding, the motor does not work, and the smell of insulation burning is felt. The elimination of the problem consists in a complete replacement of the engine.

Another case of system malfunction is the production of sound without rotating the pumping device. Prolonged downtime is the culprit. The rotor wheels "freeze" on the inner surface of the station. To begin with, the pump shaft is developed by turning it by hand; if necessary, the impeller is cleaned of debris.

Since the pump casing also has a diffuser with a connected guide, the hydrophore also stops in the event of a malfunction.The solution is to replace the diffusers for the pumping stations and then reassemble the pump in the reverse order.

This failure occurs when the terminal box capacitor stops working. An electrical tester detects a malfunction that often occurs in motors operating in a three-phase circuit. When the capacitor closes, it melts or darkens, there is only one way out - to replace the part. The main thing is to make sure that the wires are securely fastened, otherwise the capacitor will be inoperative.

Almost all breakdowns of pumping equipment stations are eliminated, and do-it-yourself pump station repair is not a myth.

To reduce the likelihood of malfunctions in the operation of the pumping station, specialists are strongly recommended to perform the prescribed maintenance and preventive inspection of the water supply systems.

The installation process itself and self-service of pumping stations require a lot of time, a significant initial investment of money, but they pay off by the absence of payment for the consumed water. Image - DIY repair of a water pumping station

Do-it-yourself pump station repair will allow you to save not only money by dispensing with the help of specialists, but also time (there is no need to look for where to repair equipment and place an order to a service company, coordinate the time of the master's visit or go on your own, postpone current affairs for the duration of the visit) ... Experts' recommendations will help you navigate the situation, determine the type of malfunction and eliminate the defect. By following the advice precisely, you can deal with the problem that has arisen, but carelessness can lead to more complex damage.

Malfunctions of the pumping station and their elimination will not become a serious problem if the system is accurately diagnosed before starting work. In most cases, this does not require special equipment. It is possible to determine the type of breakdown by external signs and using elementary measurements for which the devices installed in the system are used.

If the pump works, at first glance, correctly, and there is no water in the tap at the same time, the way to correct the situation is determined by the cause of the problem. To find it, you will have to check some parameters and operating conditions.

Define check valve condition and performance, which is located inside a well or well. Trapped debris or sand can prevent it from opening, and a closed valve prevents fluid from rising to the pump.
Check if whether the section of the pipeline between the pumping unit and the source is filled with water... Sometimes, due to a malfunction of the equipment, in the event of a power outage or other disturbances, this gap remains empty, which prevents the pump from pumping liquid. The found void can be filled through a special hole.

A pumping station in a house with a pipeline connected to it from a water source

The most difficult situation is the presence of a large amount of insoluble impurities in water with abrasive action. Often, there is a large production between the casing and the impeller of the unit. "Depleted" water supply pumping stations for a private house require expensive repairs. In this case, it will be necessary to replace the equipment (housing and impeller, if it is possible to find components on sale that are identical to those available, or completely the pump).

Lack of water in the well can also cause water to not enter the system when the pump is running. One of the simplest solutions is to submerge the supply hose or pipeline deeper (but within the limits specified in the instruction manual).

The jerk mode is called frequent switching on and off of the pumping unit in automatic mode.

In this case, you should start checking the system by determining the pressure in the air chamber of the accumulator.You can determine the pressure using a car pressure gauge. If it is lowered, try pumping air into the chamber with a pump. Wait a while and measure again. If the pressure has dropped again, look for and eliminate depressurization site... The easiest way is to eliminate the leakage of the connections. If a hole has formed in the housing (for example, due to corrosion), you can use "cold welding".

If the pumping station is jerky, the reason may lie in damage to the diaphragm... To eliminate the defect, it must be replaced.

Frequent switching on and off may result pressure switch malfunctions.If, during proper operation of the pump, the water from the tap goes in pulsating jerks, it means that the system is air leaks... All communications between the well (well) and the pump should be checked for leaks. Particular attention should be paid to the water level in the source and the correspondence of the pipe diameter to the suction height. The smaller the diameter, the lower the height should be. For example, a pipe diameter of 25 mm (or 1 inch) corresponds to a suction height of about 9 meters.If the automatic shutdown of the pump does not work, it is impossible to operate such a water supply system. Emergency operation can lead to premature wear or destruction of equipment.The reason for the non-stop operation of the pump is the incorrect operation of the pressure switch or its failure. In most cases, the repair of the pressure switch of the pumping station comes down to adjusting the device and setting the parameters of switching on and off using spring nuts under the cover of the device. Image - DIY repair of a water pumping station

Pressure switch device - nut P is responsible for setting the lower pressure level in the accumulator, nut Δ P - for setting the difference between the upper and lower pressure levels

Another option for violations is blocking the relay with salt deposits when the quality of water in the source is low. In this case, it is necessary to remove the relay and clean the hole that comes into contact with the water.

In most cases, the failure to turn on the pump is associated with breaking the electrical circuit... A tester is required to thoroughly check and detect a break. First of all, check the supply communications and the pressure switch. In the latter case, pay attention to contact status - an oxide layer may form on them, which can be removed by cleaning using a file or fine-grained sandpaper.If no breaks are found in the section from the source to the pump inlet, you will have to thoroughly check all the components of the pumping unit:A burned-out engine can be restored by rewinding, but in some cases it will be necessary to purchase a new unit.To repair a pumping station with your own hands with such "symptoms", you may also need replacement of a failed starting capacitor.If the rotating parts of the pump do not move when turned on, and a characteristic hum appears, then the reasons for this phenomenon may be:

jamming of the impeller due to its "sticking" to the body during long-term storage of the pumping unit without use (the situation can be corrected by manually moving the impeller from its place and turning it several times),

capacitor breakdown (replace),

changing the parameters of the supply network (voltage is much lower than the nominal).

Learn more about how to set up a pump station pressure switch from our separate material.

On our website there is information about the technical characteristics of the Trickle pump, which has long established itself as an inexpensive but effective unit.

Find tips on choosing pumps for garden waterfalls and fountains here. Types and basic parameters.

Repair of domestic pumping stations will be required much less often and, which is important, it will become much cheaper if you follow all the recommendations of specialists at the installation stage.

There are separate rules for fixing the pump.

The base on which the pumping unit will be installed must be solid, solid and level.

To damp vibration, the pumping station can be installed on a rubberized mat

Place the pump as close to the water as possible.

The installation site of the pumping station must be ventilated to reduce the humidity and ambient temperature.

For the possibility of easy maintenance and repair of the pump, the unit is located no closer than 20 cm from walls and other stationary structures.

Before fixing the pump on the base, markings are made for drilling holes for fasteners.

The transfer pump is installed so that the pipes connected to it do not experience additional stress from mechanical stress.

In repairing a pumping station with your own hands, a video demonstrating work on disassembling the pump can also be useful to you.

DIY pump station repair Image - DIY repair of a water pumping station

DIY pump station repair

If you want to move from a city apartment to a private house or to a summer cottage, then, undoubtedly, you will have to think about creating a full-fledged, efficiently working water supply system. Initial investments in such a system - arranging a water source and laying your own water supply system can cost more than connecting to the main utility networks, but in the future you will significantly save on the absence of payment for consumed water.

But, the ownership of its own water supply system imposes on the owner the obligation to maintain the equipment. So, any responsible homeowner must know how to repair a pumping station with his own hands.

The pumping station is the "heart" of your autonomous water supply system. A well-designed autonomous water supply system must include a well in its composition, which ensures the production of a sufficient volume of water to meet the needs of one or more households. In the overwhelming majority of cases, water from such a well has to be raised. Since the water in the wells lies at great depths, it is necessary to raise it from there with pumping devices. So that the pumps are not activated every time you turn on the water-folding device in your home, so that there is always constant pressure in the water supply system of your home, a pumping station is needed.

A classic pumping station consists of the following basic elements.

pumping device

Hydraulic accumulator (pressure accumulator)

Pump station pressure switch

As you can see, the concept of "pumping station" is only a collection of components and equipment that can be used by themselves. In industrially produced pumping stations, all the main units can be assembled in a single housing, but most of all the finished pumping station is a pumping device mounted on a pressure accumulator. Also, an automatic control device is fixed on a single frame.

During the warranty operation, problems in such equipment, as a rule, do not arise. In any case, malfunctions occurring at this time can be eliminated at service centers. However, with a long period of operation, various components of the pumping station may fail.Let's try to figure it out and find out how you can independently eliminate the most common malfunctions of pumping stations.

Let us consider sequentially all the main malfunctions of pumping stations, the reasons for their occurrence and ways to eliminate them on their own.

If you turn on the pumping station, the pump impeller rotates, but water does not flow into the pipeline, then certain factors may be the reason.

After removing the cover, inspect the condition of the impeller. You may need to replace it, of course if you find a suitable replacement part on the market. But the manufacturer's policy is that if any spare part is worn out, you will most likely have to change the pumping device (but not the entire pumping station).

The cause of such a defect may be the improper operation of the automation unit. Its main unit is a pressure gauge - a device that measures pressure. With such a jerky work, you will be able to observe how the pressure gauge readings rise to large values, and then sharply decrease.

The main reason for this disadvantage is damage to the membrane in the pressure accumulator of the pumping station (the very node that stretches when the volume of fluid in the system increases).

Rubber Diaphragm Accumulator Pressure Station Pumping Equipment

So you can disassemble the pumping equipment station

The diaphragm of the pressure accumulator is accessed through a nipple located at the back of the pressure accumulator housing. If you press on this nipple, air should come out of it. If water begins to flow from it when exposed, then it is time to change the membrane of the accumulator of the pumping station. To do this, disassemble the battery case by loosening the bolts and change the membrane.

Pressure Accumulator Diaphragm Replacement Procedure

Also, the reason for the operation of the pumping equipment station "jumps" can be air cushion pressure drop in the part of the pressure accumulator behind the diaphragm. Typically, the manufacturer pumps air up to 1.8 atmospheres into this part of the device. In the event of a leakage of the accumulator housing, air can escape and the accumulator ceases to perform its functions. You can pressurize the accumulator housing through the nipple located at the back of the unit. If microcracks have appeared in the body of your device due to rust, then the only way out can be by sealing the seams with the help of "cold welding" kits, or by completely replacing the accumulator body.

We pump the required pressure into the accumulator

Another reason for such a malfunction can be a banal breakdown of the automatic adjustment unit... Usually such devices are replaced entirely.

The cause of such a malfunction may be a partial intake of air into the water supply pipeline system. Such "suction" can occur on a segment located from the suction pipe with a filter to the inlet pipe of the pumping station. The disadvantage can be eliminated by ensuring the tightness of the pipelines and their connections, as well as by deeper immersion of the suction nozzle into the well.

The most likely cause of such a malfunction is poor adjustment of the relay that detects the pressure level in the pipeline system. The relay is regulated by two different springs:

small spring responsible for adjusting the difference in pressure indicators between max and min pressure;
larger spring sets the lower and upper limits for turning on and off the pumping device.

With prolonged operation of the automation unit, the springs can stretch and the indicators set during the initial adjustment get lost. In addition, during operation, the moving parts of the pump wear out and the maximum values of the pressure it generates decrease.

After prolonged use, reduce the maximum pressure reading by adjusting the position of the large spring.

Description of the control relay

Also, the reason for the malfunction of the control relay can be a narrowing of the relay outlet, which over time becomes clogged with deposits present in the pumped water. In this case, the relay must be removed and cleaned.

The pumping equipment station operates on electricity and its absence, or a voltage drop in the system, can cause the pumping device to turn off. Check the presence of electricity in the circuit and voltage with a tester.

If electricity is available and the pumping station is correctly connected, the cause of such a breakdown may be a breakdown of the winding of the electric motor. When it breaks down, the engine stops and a characteristic smell of burnt insulation arises. With such a malfunction, it is better to replace the entire electric motor.

Such a deficiency may occur after prolonged pump downtime... In this case, the rotor impellers can "stick" to the inner surface of the pumping device. Try to turn the pump shaft by hand. If you cannot touch the rotor with your hands, then disassemble the pump casing and eliminate the impeller defect (jamming).

Also, the cause of such a malfunction may be capacitor failurelocated in the terminal box of the device. This is especially true for motors connected in a three-phase scheme. An electrical tester is used to identify and correct this malfunction.

Also, the flaw can be caused by low voltage in the mains supply.

As you can see, the main breakdowns arising during the operation of pumping equipment stations may well be eliminated independently, without calling specialists. To learn more about pumping station repair technologies, watch the training video.

A pumping station is an excellent solution for organizing water supply in a private household. An unexpected breakdown of this complex of devices can cause a lot of trouble for the owners. Fortunately, most breakdowns are typical and can be repaired at home. You should find out in advance how to repair equipment with your own hands. We will talk about this now - stay with us and you will learn a lot of new things!

In order for the water supply 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 with the help of 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 the 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 a house, a bathhouse and other buildings located on the site with water supply. Having studied the principle of work, you need to start studying possible breakdowns and ways to eliminate them.

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

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

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

The device of household pumping units is not particularly difficult, and this allows you to do the repair yourself.In some cases, it is necessary 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 just to check for the presence 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 it was not possible to find an acceptable solution to the problem, you need to contact the specialists.

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

Cause: Violation of the tightness of the conductive pipelines, the check valve does not work correctly, there is no water in the pipeline or pump.

Solution: first, you should check for 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. Maintain the maximum permissible distance between the pump and the water level.

Now you need to check the condition of the check valve and the tightness of the joints, and then eliminate the problems found. If all these measures do not help, it is possible that the pump is damaged by abrasives that have got 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 does not hurt to check the voltage in the mains. If it is insufficient (a typical situation in rural areas), the pump will not pump water, although it will turn on.

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 body and a membrane located inside

Solution: First you need to press on 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, it should be replaced.

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

The missing air can be pumped into the diaphragm tank through a standard threaded union with a spool

It should be noted that sometimes water is supplied intermittently due to leakage at the joints of the suction pipeline. It must be checked along its entire length and any cracks found must be repaired.

Cause: There is no power supply.

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

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

Solution: To start a locked impeller, just rotate it manually a couple of times. After that, the pump should turn on. If the capacitor is broken, it will have to be replaced.

Cause: The pressure switch is malfunctioning.

Solution: It is necessary to adjust the pressure switch of the pumping station. To do this, use two springs located on the relay: a large and a small one. The large spring is responsible for adjusting the lower pressure limit, and with the small spring, they adjust the difference between the minimum and maximum values. All manipulations with the pressure switch must be done with extreme caution.

To find out the reasons why the equipment does not turn off, be sure to check the condition of the inlet of the pressure switch. Sometimes it gets clogged by particles and sediments in the water. In this case, the hole must be cleaned and the operation of the pressure switch checked.

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 properly adjusted, it can cause serious damage to the entire station, and the manufacturer's warranty does not cover such cases.

First you need to achieve the correct pressure in the accumulator. To do this, the device is disconnected from the network, and water is completely drained from the tank. Then, using a pump with a pressure gauge or a household compressor, the required pressure level 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 for starting the pump is adjusted using a large spring (2, see figure). Turning the spring clockwise increases this value, and turning it counterclockwise decreases it. To set the required range between the maximum and minimum pressure limits, turn the pressure differential adjustment spring (1, see illustration). Turning the nut clockwise expands the range, and turning it counterclockwise narrows it.

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

Then the cover of the pressure switch must be installed in place, the required volume of water must be poured into the pumping station and the power supply must be connected. The maximum pressure 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.When moving to a country house or summer cottage, you will certainly need to take care of the level of comfort. First of all, you need to create or establish a water supply system that will effectively perform its main functions. The creation of such a system is costly, because the initial investment is quite high when compared with connecting to general water supply networks. The savings will show themselves in the not too distant future, as there will be no water charges.Having your own pumping station means not only saving money, but also additional obligations imposed on the owner. Repair and periodic maintenance of the system will not take long, so the homeowner should be aware of how DIY pump station repair.Like the human body without a heart, a water supply system cannot function without a pumping station. Any autonomous water supply system must be connected to a well capable of providing a certain area with the required amount of water.People living in private houses extract water with the help of pumps, since the depth of wells can sometimes reach several tens of meters. The pumping station serves to maintain constant pressure in the water supply system and to pump liquid from one place to another.An average pumping station has three main components, namely:

pumping device;

hydroaccumulator;

automation unit.

Now let's look at each element in more detail.Water supply stations are most often equipped with surface pumps, whose names indicate their location. They are installed in specially equipped xenons, or inside living quarters. Pumps with a fairly high power are used, since it is necessary to raise water from wells and transport it to the house. Image - DIY repair of a water pumping station

A small device is enough to service one house.

A pressure accumulator (also called a pressure accumulator) is a metal device whose purpose is to maintain a certain pressure level on a constant basis. The most popular is the model, which is a small metal balloon with an elastic membrane inside. During operation, the rubber membrane deforms to a certain point. When the work is stopped, it returns to its original position, while displacing the liquid from the cylinder.

Accumulator device

It is intended for the timely termination of the device. It works like this:

pressure drops to a certain point;
the relay starts to work;
the pump comes into play, and the accumulator begins to fill with water;
upon reaching the optimum pressure, the operation of the device is suspended.

As you have already noticed, a pumping station is a combination of components and assemblies, the operation of which is possible separately. In most cases, all the main units of the unit are installed on one bodyhowever, there are also models in which the pumping device is mounted on a pressure accumulator. The automatic control device is also located on one housing.

Automation unit for the pump

During the entire warranty period, there are practically no problems with equipment during operation. But this does not mean at all that you will not have to face the need to troubleshoot various nodes. With a long operating period, any part of the mechanism can break down, so you need to be prepared for everything that happens. Let's take a look at the possible causes of the breakdown and the options for fixing these problems.

Even the most reliable mechanism is not eternal, this also applies to the pumping station. There are many breakdowns due to which the work is disrupted or stops altogether. The most common ones are:

the membrane tank is broken;
broken pump;
there is no liquid in the system;
the automatic block is damaged;
no electricity and others.

The simplicity of the design of domestic pumping stations allows you to carry out diagnostic and repair work on your own. Sometimes it is enough just to replace a non-working part. In some cases, it is necessary to renew the sealing in the tank by gluing the crack, and sometimes even to determine the flow of electricity to the mechanism. Each specific case boils down to a single question - why does the pumping station not pump water and how can the resulting problem be solved? In case of unsuccessful attempts to identify the optimal solution, it makes sense to seek help from specialists.

How is the repair carried out

We will analyze in detail all the common problems in the work, the possible reasons for their appearance and the options for quickly eliminating them with our own hands, without the help of specialists.

Water has stopped flowing, and the pump impeller is operating normally. If such a disaster happened to your station, then read the following recommendations.

There are several possible reasons, one of which is a malfunction of the automation unit. Its main unit is considered to be a pressure gauge (this is a special device that measures pressure). The pressure gauge needle will make sharp movements from wall to wall of the pressure gauge during such inadequate jerky operation.

Damage to the membrane may well become the main cause of malfunction of the station components. The operation of the membrane in the accumulator was mentioned earlier.

The diaphragm can only be reached through a nipple installed at the back of the pump housing. Press lightly on the nipple and you can feel the air flow from it. Well, if instead of air you see a trickle of water, then it is necessary to replace the membrane of the accumulator. To do this, you will need to disassemble the battery case.

Another common cause of poor system performance is low pressure in the bag.This refers to the pressure drop in the area behind the membrane. The factory standard assumes a pressure of 1.8 atm, but during operation, the tightness of the pipelines and the body may be violated, due to which the pressure level drops. You can increase the pressure level through the nipple installed in the back of the body. In the presence of microcracks, this method will not help; a different approach is needed here - "cold welding", thanks to which the formed cracks can be repaired. If welding does not help or the cracks are too large, then you need to change the accumulator housing.

What does a pear look like in a hydraulic accumulator

Another, albeit rather rare, reason is that the automatic control unit has broken down. In this case, only a complete replacement of the device will help.

Intermittent water transfer is most likely due to air entering the piping. Air ingress most often occurs in the section between the inlet and suction branch pipes of the device. Troubleshooting can be done in only one way - you need to ensure the complete tightness of all pipelines, including connections. If possible, lower the suction port slightly lower in relation to the ground.

The most probable reasons for such a nuisance include an unregulated switch designed to fix the pressure level. The pressure switch adjustment procedure can be carried out by changing the position of the two springs - small and large.

It is mounted on a relay and is designed to equalize the pressure between the minimum and maximum.

This spring is installed on the relay to create limits for the system to be energized or deactivated.

Pressure switch device

During operation, the operation of the springs can be disrupted due to their premature expansion. As a result, the initially established indicators go astray. In addition, with prolonged operation, there is a risk of wear on the moving parts of the pump, due to which the pressure readings drop.

Possible reasons for the failure of the control relay include a decrease in the size of the hole in the relay, it is also called "output". The constriction occurs due to deposits in the well water. Clean the relay and the problem will go away by itself.

The pumping station is powered by electrical energy, the absence or fall of which will undoubtedly cause the device to stop working. Using an electrical tester, check the voltage level.

In the absence of interruptions in the operation of electricity, you need to look for the cause of the malfunction elsewhere. In this case, it is a violation of the winding in an electric motor. The presence of breakdowns in the winding is accompanied by a stop of the motor and the appearance of a burning smell (insulating materials have begun to melt). Only a complete replacement of the electric motor will help to solve such a malfunction.

With pumps that have been idle for a long time, this problem can occur. This is due to the fact that due to downtime, moving parts have become jammed over time (for example, stuck or rusted). Try to start the locked impeller with your own hands. If everything worked out and you managed to crank it, great, but if not, disassemble the pump and solve the jam problem.

Burning out a capacitor can cause similar "symptoms". It is installed in the terminal box of the unit. To identify and eliminate this malfunction, you will need an electrical tester.

Do not forget that adjusting the relay is very serious - this is a delicate procedure that must be treated with extreme caution. One minor adjustment error can damage the entire system, which means wasted time and money for repairs. In addition, the warranty does not provide for damage to the unit in such cases.

How the pressure switch is adjusted

Initially, it is necessary to achieve the optimal pressure in the accumulator.This can be done by disconnecting the pumping station from the power supply and draining all the accumulated liquid in the tank. Now, using a special compressor with a sensor, create an optimal pressure level in it. Then remove the cover over the relay, while still gaining full access to the small and large adjustment spring.

Setting the minimum pressure is achieved by turning the large spring: to increase the indicator - clockwise, to decrease it - counterclockwise.

As you can see, you can deal with most of the faults with your own hands, without resorting to the help of specialists. This will save you money and, most importantly, give you a new experience with pumping stations.

Video (click to play).