Re: Diplomat dishwasher APD 8902
Thanks Dave,
Problem may be resolved!! fingers crossed.
We tried to access the valve from the back but plates are fixed with a rivet type fixing. We therefore re connected put machine back under worktop. Squirted some WD40 into power button area. Put the unit into operation and for some reason it seems ok. We have since had 4 trouble free wash cycles. Hopefully that’s it !
Can only think we somehow released a sticky valve when moving the unit or power switch was sticking causing the Knocking sound. So far so good, Many thanks for your suggestions -would be interested to hear what you think.
Ron