Replacing the pump in a dishwasher: instructions for work

Many people today have a dishwasher. The lack of free time forces users to install such equipment in the kitchen to make their work easier. However, even the most modern and high-quality devices break down. In most cases, failures are minor, and their elimination involves replacing the failed part. An important part is the circulation pump, which creates the necessary pressure in the chamber. If it fails, the dishwasher will not work. Let's try to figure out how to replace a dishwasher pump.

Pump operating principle

Its main purpose is to pump water into the system. The pump operates constantly, drawing liquid into the rocker arm, from which it is supplied under pressure. At the same time, the dispenser with detergent compositions opens, food waste is washed off onto the tray and ends up on the filter. The water is purified and re-enters the nozzles. This feature made it possible to call the pump a recirculation pump.

The pump drains dirty water, removing it from the washing chamber. Once the duty cycle is completed, the management board sends a signal to pump down.

Remember that the impeller is most vulnerable, as it winds various debris around itself, blocking the operation of the entire mechanism.

Signs and causes of pump failure

If dishwashing equipment It draws water, but does not wash the dishes; you should not rush to change the pump. The fact is that this part is reliable and rarely fails. More often, blockages appear in the filter or injectors.

Must be disabled dishwasher, open the door completely, look into the washing chamber, inspecting its bottom. There is a plastic object resembling a cup and a metal mesh. If any part is clogged with food waste, it is cleaned, after which the machine can be reloaded with plates.

The impeller on the sprinkler is carefully checked. They pull it out and clean all the holes with a needle. When the water flows freely, the machine will start working normally.

To make sure that the problem lies specifically in the circulation pump, it is recommended to listen to the behavior of the dishwasher at the time of water intake. If it stops after collecting liquid, the pump is broken. But when the dishwasher hums without performing the washing process, clean the paths of debris, and only then check a part such as the pump.

Among the reasons why the pump fails, experts highlight the following:

factory defects;
violations of operating rules;
voltage drops in the electrical network;
damage received by the washing mashine during transportation;
unprofessional repair.

Fans of do-it-yourself repairs are recommended to pay attention to the last reason. If possible, entrust pump repairs to experienced specialists.

Getting ready for repairs

First you will need to complete the preparatory steps:

the dishwasher is disconnected from the power supply, the hoses are disconnected, the housing is installed in such a place that it is convenient to disassemble it;
Unscrew the screws holding the side panels and remove them;
We rearrange the dishwasher upside down, remove the soundproofing material from the side walls;
We find on the side walls a mechanism designed to smoothly open the door. It consists of a cable, plastic blocks and springs that must be unhooked, holding the door and preventing it from falling;
the pallet is held on hooks located at the corners of the chamber. They will have to be unlocked using a screwdriver;
at the very base of the tray, where the machine hoses fit, there are also hooks and electrical wiring plugs. All these elements are detached;
Having completed all the above steps, carefully lift the pan, disconnect the input pipe, and remove the pan from the machine.

In front of us were the most important parts of the machine, in the center - the circulation pump, which must be replaced. It is impossible to confuse the part with anything else, because it is the largest, and many wires are connected to it.

If you have Bosch or Ariston dishwashers, then flow-type water heating elements are installed inside the pumps. True, it will not be possible to change them separately - a new pump is needed in any case.

Preparations for work are completed. Now let's figure out how to replace the pump.

Procedure for replacing the drain pump

First, you need to find out how the old pump is checked and where a new analogue is purchased. Checking the removed part should be entrusted to experienced craftsmen, since you cannot do such work yourself.If you have to buy a new pump, you can do this in a specialized store or on a sales website. When ordering a pump, be sure to specify the model of your dishwasher .

Theoretically, everything is clear, we begin to remove the pump that has stopped working:

disconnect all the chips with electrical wiring. There are quite a lot of them, so before starting work, we advise you to take a photo of the location so as not to make a mistake during assembly;
at the base of the pump there is a clamp made of metal material, which will have to be removed by hooking the hook with a screwdriver and disconnecting the clamp into parts;
in the same place you will find a rubber pipe from which the pump is also disconnected;
it remains to disconnect the pump from the distribution block element located nearby;
our pump hangs on a single suspension. You just need to remove it.

We prepare the pump purchased as a replacement. We place it on the suspension, connect the pipe, fix the clamp. All that remains is to connect the electrical wiring, connect the dishwasher to the utilities and perform a test wash.

Conclusion

If the pump in the dishwasher does not turn on, it will most likely have to be replaced. There is nothing complicated about this, and if you follow the instructions, then all work can be done