[Arngill]

Hi Dave, Dishwasher has been on the back burner for a while due to other things going on however I have just had another look and what I found is that I don’t get any 240V on connection 10 on plug KN7 at all. I have tried with the door switch closed and a program started, still nothing. Opening the board, I get no 5VDC across the RL1 relay coil so it appears it is not being told to close the contacts and supply volts to the valve. The relay itself is fine, with the board on the bench I can switch it with a 5V supply and the contacts close to 0 ohms. It’s protection diode is OK and the driver transistor appears OK ohms wise.
Can you tell me at what point this relay should close?
Thanks, Steve

[Arngill]

Hi Dave, Well that’s interesting info. I have verified that there is no 240V ACROSS the valve terminals when the cycle starts but I never measured either to ground. I assumed the live was switched by the triac not the neutral…So I will have another crack at it.
Cheers
Steve

[Arngill]

Hi Just tried this. Play & Pause flash together as described. Switched off, tried a short cycle. As before, fill solenoid not being told to open by control board. Running out of ideas now. I am seriously thinking control board is faulty as nothing else seems to be. Now looking for replacement dishwasher. Thanks for listening.

[Arngill]

Hi Dave, I just re-read your reply, the part about the list of faults….If I hold down the reset button while powering up, all digits flash at once, then it sits and displays P3 and P6. I wonder is this a fault code? If so does your fault list mention this?
cheers Steve.

[Arngill]

Hi Dave thanks I will give this a try.

[Arngill]

Yes…All the connections ohm out as they should. What I would really like to find out is how the diagnostic mode operates. If I hold down reset and power it up it goes into a diagnostic or test mode. fiddling with this I can get the thing to fill, but without knowing how to use the test mode I am fumbling in the dark. Any idea where I can find out how to use this mode? I have trawled the web endlessly but can find nothing. It’s like a state secret.

[Arngill]

Hi Dave, thanks for the reply. Yes I checked the antil flood switch with DMM and it opens and closes normally. Not sure why they use three terminals but they certainly switch from open to short when the switch is pressed. What Iwould really like to know are the test functions.
Cheers Steve

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