Whirlpool ADP 4601 Dishwasher 4 flashes

[Syngress]

Hi,

I have the above dishwasher and the start light is flashing 4 times, I have searched the site and found this means there is a problem with the drainage.

I have checked and cleaned the filters, and I have also checked that water does get pumped out by putting some water into the bottom, with the dishwasher turned on holding the start button in seems to reset the cycle, and the first thing it does is pump the water out....but still the start light will start to flash..

Anyone have any ideas on what to check/change/clean/hit with a big hammer next?

Thank,

Mike

 

[Sleepyhead]

Pressure switch problem. Take out the fine filters, there's a black grid at the 3 o'clock position in the sump. Carefully clean inside this, don't burst the membrane. Pour a kettle of boiling water over it. Reset and try the machine again.
If still not working your choices are the pressure switch or the pcb.

 

[Syngress]

Thanks Sleepyhead,

I have already cleaned the pressure switch (as I had seen in mentioned in previous posts)....

Is there an easy way to remove the switch? so that I can test it or even to replace it?

Mike

 

[Syngress]

I took the pressure switch, by getting it from the bottom of the dishwasher, it was clean but gave it a good clean again, put it back in and it worked for the first wash!!! I know have the 4 flashing lights back, so I would say I have a faulty pressure switch, does anyone know what the part number of this switch would be and any idea where I would be able to get hold of one?

Thanks,

Mike