FIXED GDT655SSJ0SS GE Dishwasher Wont heat up

[egzachly]

Model Number

GDT655SSJ0SS

Brand

GE

Age

1-5 years

My issue started with a leaking diverter, somehow the rubber housing that slips over the pump output sprung a leak on the top side.

After fixing this the heating element no longer seems to be working either.

Things I've tested so far
- Continuity of the heating element ~13 - 20 ohms so probably fine
- Exhaust motor and vent - all looks fine
- UI control board - no visible damage or smoked parts
- Main control board - no visible damage or smoked parts
- Ran it through a cycle and put a volt meter on the heating element leads and sporadically checked the voltage - always at 0v
- Checked for loose connections underneath, to no avail.

Anything I'm missing? What should I explore next?

I'm thinking I'm just going to kick up the temp of the water heater to 140~ and just live without heated dry but the wife isn't on board with that idea.

 

[Jake]

Ok, Let's check the Tub TCO.

Here's the service manual for your model: https://drive.google.com/open?id=1M-G9W3HiaYnihdB5Cy-jfSPoVf8DZ7j7

Page 69 is your NOT HEATING flowchart. It starts with saying: Access main control board, then ENTER SERVICE MODE, then check resistance connector J702 Pin 1 White/Red to Pin 2 Violet 17-27 ohms--->If NO, Reset TCO and test it again.

--->The TCO is located on the right side of the tub, approximately 16 inches from the front of the tub.

The TCO is in a series circuit with the Calrod Heater, if that TCO is bad(open) it will never heat.

TCO=Thermal Cut Off

Here's the TCO for your model:
Wire Harness WD21X24096


Its the SILVER METAL part integrated into that wire harness. Its currently in-stock here: WD21X24096

Let us know what you find.

Jake

 

[egzachly]

The Thermal Cut Off fixed my issue.

Thanks for the help!

 

[Jake]

Excellent, glad to hear the new Thermal Cut Off fixed it.

Thanks for the update!

Jake