GDT550HGD0WW GE dishwasher does not heat

[Mcnabb75]

Model Number

GDT550HGD0WW

Brand

GE

Age

6-10 years

Hey,
So the dishwasher does not heat. Checked the heating element, it is good. It also heats in diagnostic mode. Thermostat is good otherwise it wouldn't heat in diagnostic mode.
There are no error codes.
Checked the thermistor, which I believe is in the turbidity sensor...? Tech sheet wasn't very clear but I did check a thermistor from one of the diagrams insert pictures. Checked out ok.

I did replace the float switch to no avail.

Thank you in advance

 

[Jake]

When it heats in diagnostic mode and not in any wash cycles, then problem is the software in the control board is not turning it on when its suppose to.

You will need to replace the control board to fix it.

Here's the control board for your model you can order:
Control Board WD21X22276


Jake

 

[Mcnabb75]

Ah. That's what I was leaning towards but didn't want to take that leap.
Thanks for the help and shall let you know.