GE Adora DDT595SGJ5WW Dishwasher with no lights showing

[bbradb]

Model Number

DDT595SGJ5WW

Brand

GE

Age

1-5 years

Posted this earlier today on the end of a thread that had been FIXED so maybe no one saw mine tacked on end.

My dishwasher out of the blue just quit with no lights anywhere. I have service manual for the unit. No hint of issues No lights or beeps etc. All power to DW checks out good. Dropped Main Control Board. I have new square board. Applied power and see rapid continuous blinking of Service Led on MC. I am not able to go into Consumer Error Mode or Service Mode. Page 45 in manual says: "Flashing rapidly - replace MC". Have not removed door and hope not to need. I have top of door UI. I will look over cable as best I can but is this indication that my CB definitely needs replacing? Thanks in advance. BTW cable looks ok at MC end. What else should i do or just order board? Anyone?
Bruce

 

[Jake]

Hi Bruce,

Page 45 in manual says: "Flashing rapidly - replace MC".

That's only with the NON-SQUARE board, I'm attaching a service bulletin that shows the SQUARE board flashing STATUS LED is normal.

--->Service LED on Main Control--->The new main control has a steady flash pattern on the service LED and only indicates the dishwasher has power and DC voltage is being produced by the control.

So the problem would be either the door wire harness OR the UI Board.

I'd first check your door wire harness to see if its shorting out, look for bad spots on it, look for any metal pins that have backed out of either side of the connectors that connect to the machine control board and UI Board.

Here's the door wire harness for your model:

GE WD21X21664 Harness Asm Door (AP6034215) - AppliancePartsPros.com

HARNESS ASM DOOR WD21X21664 / AP6034215 made by GE

click.linksynergy.com

Here's the user interface(UI) board for your model: WD21X31910 Kit Svc Ui Top Logic

 

[bbradb]

hello Jake,
Pulled door. Voltage at UI end of cable is 3.1 to 3.2 VDC (two diff meters). Manual calls for 3.5. Couldn't figure out a convenient way to measure at Control Board end. Cable looks good. Is that within tolerence so UI is bad?

 

[Jake]

Voltage at UI end of cable is 3.1 to 3.2 VDC (two diff meters). Manual calls for 3.5.

That's a good question, but I don't know if that's close enough or not. It may be better to order both the machine control board and UI Board just to be on the safe side.

Here's the newer square control board for your model:

GE WD21X25730 Configured Service Machine Control Board (AP6994874) - AppliancePartsPros.com

Configured service machine control board WD21X25730 / AP6994874 made by GE

click.linksynergy.com

You can use this safety pin trick if your meter leads are too big:

 

[bbradb]

Are your parts returnable if I don’t need.

 

[Jake]

Only if they are defective.

AppliancePartsPros and RepairClinic Always has a 365 day warranty on ALL parts.