Each of the elements of the pump must work stably. To do this, you must follow the rules when connecting and select equipment according to the specified parameters. If any item was not taken into account, the unit fails. If the pump was installed by a master from a service center, repairs will be free of charge under warranty. If the owner himself performed the installation, you will have to repair at your own expense.
Troubleshooting algorithm
Conditions that must be met to ensure uninterrupted water supply:
- the presence of sufficient water in the well;
- lack of electrical wiring in the house, as well as compliance with the needs of the pump - voltage, current frequency;
- ratio of equipment productivity and well depth;
- serviceable pump;
- working condition of the pipeline.
Based on this, you need to try to independently determine why a surface or submersible pump does not pump water well.
You need to look for the cause in turn in three places - in the house, in the well, in the ground. To begin, disconnect the pipe between the pump and the line. If liquid spills out through the nozzle, then the problem is not the equipment. If the unit does not raise water, you need to get it out and look for a problem inside the case or in the electrical unit.
If the submersible pump buzzes, but does not pump water, connection errors, improper assembly of parts during assembly, changes in the operation of the device during operation are possible.
First, check the water level, if the unit first worked normally, then stopped raising the liquid. Another reason is power surges or its decrease. If the pumping equipment has just been assembled and it refuses to start, there will be more reasons.
Expensive imported pumps are equipped with a powerful protection system and are turned off under any non-compliance with operating conditions. This is done so that home masters who read the instructions after installation do not ask the manufacturer to return the money, but look for a problem or call the masters from the service to fix the errors.
The main causes of damage to submersible pumps and how to eliminate them
When installing for the first time in my life, there is a chance to make a mistake in one of the points. Many make several mistakes at once, some of which are the cause of the inoperative state of submersible or surface pumps.
The causes of breakdowns for each type of pump depend on their design features. For example, in drainage and fecal systems there is such a thing as cavitation. If the lifting height of dirty water or cesspools exceeds the capacity of the equipment, or it does not match the amount of liquid in power, air accumulates inside the pipe and the water does not have time to get under the blades. As a result, the unit shuts down.
The most common causes of pump equipment failure:
- drop in liquid level in the hot season, due to soil movements;
- the pump is very powerful - the debit of the well is small;
- an error in the calculation of the pressure, the installer did not take into account the horizontal distance of the line;
- mains voltage is below the permissible level;
- cork from garbage or building materials in the pipe;
- pipeline depressurization or mechanical damage;
- damage to the pump itself.
If the water goes to lower horizons, the built-in thermal relay turns off the equipment, protection against overheating is activated. Dry run protection may work. It happens that the device is suspended high - at a dynamic level.In this case, you need to lower it below - to a static level so that the feed is not interrupted.
When using a vibration pump, the well is often silted and needs to be cleaned. Therefore, drilling should be carried out by licensed companies that provide a guarantee of the quality of services and carry out all work to maintain its cleanliness.
Incorrect debit calculation
Dry run protection will periodically be triggered if the well does not have time to fill up again between pump starts. A very powerful device was selected that quickly drains the casing. If at the same time the storage tank has a large volume, and the water flow in the house, especially in the morning and evening, is too large, you will most likely have to change the pump to a less powerful one or drill an additional well.
Insufficient water column height
Errors in choosing the height of the water column lead to the fact that the equipment is not able to raise the liquid with the available parameters. Most often, the master does not take into account the horizontal section of the highway, which also consumes the power of the unit. A greater pressure is also required if the highway has many turns, connections, transition sections that increase resistance.
Power outages
If the motor turns on and then abruptly turns off, there is probably not enough voltage in the network. It is measured with instruments, and then a transformer or stabilizer is installed. You can not save on this, since a more expensive unit can burn out.
Well siltation and construction debris
With a very dirty well or well, the casing and impeller become clogged with debris. The motor is buzzing, but water does not rise to the surface. It is necessary to lift the equipment, disassemble and rinse, but this should be done by a professional, since it is important to seal the case well again. Grids or filters must be installed so that sediment does not get inside the device.
The problem arises literally within 2 days after the start of the water supply system, if the workers left inside the construction debris - tapes, rags. These residues close the filter and prevent liquid from entering the house. The pump is turned off, but it is working.
Mechanical damage to pipes
If the pipes in the ground are damaged, the pump works normally, but water does not enter the house. This occurs when the parts of the pipeline are poorly connected with fittings or when the soil moves. Improper selection of materials or the accumulation of mineral sediment on the inner walls also prevents the fluid from passing through the line. You need to change either the damaged area, or the entire system, if it was laid for a long time. Most often this happens if the water contains a large amount of carbonates or iron salts. In a plastic line, the risk of clogging of pipes is much less, because their walls are smooth.
If the pump is not correctly suspended, the weight can put pressure on the pipe and deform it. The way out is to tighten the cable or chain. Given that the unit can weigh up to 30 kg, soft materials are damaged quickly.
Damage inside the device is repaired at a service center. The most common cause is a breakdown of the pressure switch or depressurization of the hydraulic tank. In this case, the submersible pump does not turn off.
Failure Warning
It is possible to completely protect yourself from breakdowns of pumping equipment only if all work from laying the pipeline to installing electrical appliances is performed by professional craftsmen who provide documentation and a guarantee on the amount of work performed. With a lack of practice and errors in the calculations, no one is immune from failures and breakdowns.
