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FIXED GE GDT545SJSS Dishwasher won't start

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blakecreek

Premium Member
Joined
Jan 18, 2018
Messages
5
Location
Maryland
Model Number
GDT545PSJSS
Brand
GE
Age
6-10 years
Yesterday the dishwasher didn't finish it's cycle (still water inside) and I couldn't restart it. Any attempts to restart resulted in no action from the dishwasher at all. I manually emptied the water out. Restart attempts resulted nothing at all... no water coming in... nothing happening.

I did a little research and it seemed to indicate it might be the float valve switch. I got the float valve switch out. It was FILTHY with crud. Gave it a few shakes, nothing moving inside at all. Gave it a good washing and was able to detect the float bowl was now moving inside (at least I could hear it). Reinstalled float valve switch (it appears very clean externally). Was hoping the problem was solved.... but...

Upon reapplying power (C/B) the dishwasher indicated the door isn't shut!!!! Set the cycles, shut the door, hit START, and then the orange light started blinking and the dishwasher started beeping. And that's as far as I can get, no matter what!!!??!!! This would indicate the door is not closed.... so I did the door check by instruction on the maintenance sheet. Whether the door is open or closed.... the LED's blink indicating the door is not closed. This happens with the door closed or opened.

I also tested the door switch with an ohmmeter and the contacts all indicate the door switch is working fine. We checked alignment of the switch and door... they all seem tight.

I'm perplexed, we never had a door latch issue. Is it possible the float valve switch is still bad internally? Could that affect the door latch indication??? Or did I have a double problem of some sort pop up.

The unit is 6 years old... once day use... is that a lifecycle now a days :)

Thanks for any suggestions!!!
 

blakecreek

Premium Member
Joined
Jan 18, 2018
Messages
5
Location
Maryland
PROBLEM - Dishwasher won't start... acts as if door not latched. Door latch is good.

UPDATE .... I accessed the main control board. I have a steady OFF LED on the main control board.

When I run consumer error mode, all control panel LEDS flash (with door open or closed) and I get the 815 SW code.

When I enter and run service mode I also have STEADY OFF LED indication on the main control board when I toggle through the 5 tests.

Anything else I can check? I'm guessing main control board is bad... what would the correct part number be for this model?



Thanks ahead!!!
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,144
Location
Redmond, Oregon
Hi,

Your missing a digit in your model number, read it from the machine please, its located inside the door on the tub frame.

Here's the results I get:
GDT545PSJ0SS
GDT545PSJ2SS
GDT545PSJ4SS
GDT545PSJ5SS
GDT545PSJ6SS

That's a very important digit, because it tells us what revision it is for the correct machine control part number.:)

Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,144
Location
Redmond, Oregon
Thanks!

Yes, If you are getting 120 volts to the machine control board(under the dishwasher) and the STATUS LED is STEADY OFF, that means the machine control board is the culprit.

Here's the machine control board(under the dishwasher) for your model: WD21X24900C

Let us know how it goes after you replace it.

Jake
 

blakecreek

Premium Member
Joined
Jan 18, 2018
Messages
5
Location
Maryland
New main control board arrived today. LED on board came ON blinking... door shut and passed test... ran a load... BINGO... all is well.

Thanks to Jake and the other related forum threads that helped troubleshoot this...
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,144
Location
Redmond, Oregon
Excellent, glad to hear the new machine(main) control board fixed it.(y)

Thanks for the update!

Jake
 
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