How to replace a dishwasher pump

replacing the pump in a dishwasher When we say: replace the pump for an Ariston, Bosch, or another brand dishwasher, we mean that either the pump (drain pump) or the circulation pump must be replaced. When replacing a pump, the repair itself is simpler and costs less, but replacing a circulation pump will cost many times more, even if you carry out the repair yourself. Read about how to replace both pumps in this article.

Preparing for work

Some craftsmen claim that in most cases, repairing a dishwasher can be done with almost bare hands. Basically, only a flathead and Phillips head screwdriver are required. But to be sure, you need to prepare pliers, a multimeter and an awl.

Pliers are needed to tighten the fasteners that hold the dishwasher pump.
Screwdrivers are needed to remove fasteners.
The awl is useful for prying the panels to make their removal easier.
A multimeter is needed to measure the resistance of electrical elements.

But preparation for repairing and replacing the drain pump, as well as the circulation pump, is not limited to the selection of tools; you need to properly prepare the dishwasher itself. What actions need to be taken?

Dishwasher Bosch or Ariston is unplugged.
We turn off the water.
We unscrew the lower decorative strip, which is located under the “dishwasher” door.
Disconnect the inlet hoses from the machine body.
Move the dishwasher body forward a little.
Disconnect the drain hose from the siphon and twist it.
We spread cellophane on the floor, throw several large rags on top, and only then install the dishwasher.

Important! Built-in dishwashers from Bosch, Ariston and others are prepared for repair using the above method. Freestanding “dishwashers” are a little easier to disconnect and remove, but the essence is, in general, the same.

Replacing the drain pump: step-by-step instructions

The pump (drain pump) is changed “once or twice”; the main thing is to disassemble the dishwasher correctly, but problems may arise with this. If you do everything according to the instructions, then the entire repair from start to finish will take no more than 20 minutes, and dishwasher disassembly will take the most time. So, let's start disassembling the machine and replacing the drain pump. pump and circulation pump

Open the door of the Bosch or Ariston “dishwasher” and take out the trays and baskets for dishes from the tank.
We take out the flat sprinkler.
Unscrew the plastic garbage filter that looks like a glass.
Remove the filter mesh.
We unscrew the fasteners located under the mesh.
Now you need to turn over or tilt the Bosch or Ariston dishwasher on its side.
Remove the side panels and plastic fasteners.

Note! When you put the car back together after completing the repair, do not forget to put these fasteners in place.

Thermal insulation may interfere, so we remove it to the side.
Next, unhook the filling pipe and disconnect the tray with the units from the body of the Bosch or Ariston dishwasher.
Next, every element located in the pan is turned off, including the circulation pump, to do this we carefully pull off all the wiring.
There is a pump on the side of the circulation pump; you need to grab it firmly with your hand and turn it half a turn to the left - the pump can be easily removed.

The old pump has been removed, now you need to get an original spare part that will not only be compatible with your dishwasher Bosch or Ariston, it must be approved by the manufacturer. Only in this case can you count on the dishwasher to work properly. The easiest option is to write off the factory designations from the old pump and order a similar one in the online store. Or go to a store that sells spare parts for washing machines and dishwashers, show the seller your old pump and ask to sell the exact same one.

The pump (drain pump) for a Bosch or Ariston dishwasher has been purchased, now you can begin installing it. The pump is inserted into the niche of the circulation pump, turned to the right half a turn, the wires are connected to the contacts (previously the plug with the wires is turned off), and then we assemble the dishwasher in the reverse order - the repair is completed.

How to replace the circulation pump?

The pump (drain pump) of a Bosch or Ariston dishwasher is easy to change, but there is nothing complicated in replacing the circulation pump, the main thing is to have an idea of the structure of your own “home assistant”. The drain pump only pumps out waste water, but the task of the circulation pump is more complex. It circulates water in a circle, feeding it through sprinklers into the tank, which allows you to wash the dishes.

At the same time, in some cases, a flow-through heating element is installed in the depths of the body of the circulation unit of a Bosch or Ariston dishwasher. Its task is to heat the water, maintaining its temperature during washing.Repairs, which come down to replacing the circulation pump, also begin with disassembling the dishwasher. We have already described how this is done above. Next we do the following:

disconnect the drain hose from the circulation unit;
remove the circulation block from the fastenings that are located underneath it on the side;
disconnect the inlet hose.

Important! Before removal, all wiring is disconnected from the circulation pump. In this case, it is advisable to sign all the transactions so as not to confuse anything later.

Now all we have to do is carefully remove the circulation block and put a new one in its place. On Bosch dishwashers and some others, the circulation unit is non-separable, so it should be replaced entirely. We put a new unit in place of the old one and reassemble the car in the reverse order. The renovation is finished!

In conclusion, we note that repairing a dishwasher, which boils down to replacing the drain or circulation pump, will not force you to do any serious work. The main thing is to act systematically and first study the features of disassembling your “home assistant”, then the repair will be completed successfully. The drain pump is a little easier to change, but in general the circulation pump is also easy to change. Good luck!