The most common in my view is the impeller jamming on the pump normally something small like a piece of chipped china or bit of broken glass, this can be removed with tweezers or pin nose pliers. After removing it should rotate easily by hand… then you should replace the pump cover and the filter above it must be locked by aligning the blue arrows so that large bits of rubbish cannot get into the impeller again.

There are two types of pump covers one is held on with a screw and the other clips into place.

In a lot of people’s houses they have the dishwasher plumed into a sink unit and the fittings can get clogged and also blocked with fat, some have a cross inside the spigot and this gets blocked with all kinds of stuff.

When you push the dishwasher into place the pipes can get trapped and kinked so make sure that this does not happen. Sometimes the waste pipe has kinked when it was fitted and over time the dishwasher is getting worse at emptying and this is when the E25 fault starts occurring.

The last fault is the pump has failed or it is only working intermittently. The new type of modern pump has the armature inside the pump housing and is prone to the seal failing and water can get inside and reduce the inefficiency of the pump.

Plumbing fittings to check are shown in these photographs

This video can be used on all these makes Airlux, ATAG, Balay, Bosch, Constructa, Gorenje, Imperial, Koenic, Kuppersbusch, Neff, Pelgrim, Pitsos, Siemens, Thermador, Tecnik, Viva, V-Zug,