Having problems with your Bosch 24 in. SHU43 Built-in Dishwasher ?

My dishwasher runs but does not have enough pressure to clean the dishes or turn the spray arms. Arms spin freely. I have removed and cleaned the screens in the bottom of the dishwasher. I also have removed the large pump and checked it for damage..no problems found. Model SHU43CO5UC / 17


Answers :

Hi.

Below a list of things to check.

Check the water inlet at the back, ensure that the hose is not clogged or kinked, and that there is sufficient pressure.

Ensure that the machine is not underfilling. Test the water level switch. If this is a float switch, attach a weight to the floater using cello tape, to sink it a bit and test the appliance with slight overfilling.

Check that the arms attachment are steady and not leaking.

Ensure that the lines to impeller pump are free.

If dishes are simply dirty, and you are not sure that the problem is pressure from impeller pump, and arms not spraying/rotating, also chack the following.

Check that the detergent drawer is opening. Also ensure you are using the right detergent.

Check the drain well , if this is clogged with debris, the pump will keep re-circulating dirty water, and this will clog arms orifices.

Ensure that water is reaching temperature.

Regards.
Weak pump perhaps? if the dishwasher is 5-10 years old maybe it is time for a new pump? or a new pump motor
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