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FIXED GE GDT545PSJ5SS main board replacement - no pump to sprayers

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RichDe

Premium Member
Joined
Mar 3, 2022
Messages
3
Location
WA
Model Number
GDT545PSJ5SS
Brand
GE
Age
1-5 years
Dishwasher would not power on at all. I pulled the main board out and found the fuse was blown. Tried shorting it out as a test, still no power to the user control board. Ordered a replacement control board (WD21X24900). Installed it and it looked like all was well. Unit powered up. Tried to run a cycle. Water valve opens and allows water to flow for a minute or so but then when I am used to hearing the pump kick on and the sprayers activate, nothing. The timer will still count down. After a few minutes, I smelled something like hat plastic. I opened the door and didn't see anything melting but it appears the heater element is on. Wondering if I have the wrong control board or if there is more wrong.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,822
Location
Vicksburg Junction, Arizona
Hi,

You accidentally installed the wrong machine control board, also the service manual says when that fuse is found open to replace the circulation pump too.

--->Here's the machine control board for your model: WD21X24901 Machine Control

Here's the service manual for your model: https://drive.google.com/open?id=1XTOXM0wA0UJEuucW0deIni17sMPtDGtD

On page 52 is says NO CIRCULATION, then there is a flowchart to tell the steps on what to check with a multimeter.

The first is Circulation Pump will not run--->Access main control, place dishwasher in service mode, check for 120 Volts AC on connector J702 Pin 2(YB) to Pin 3(CR) there is a misprint, it should be connector J703 not J702.

Circulation Motor Fuse
A circulation pump motor fuse is located on the main control board. If found open while testing for no circulation pump operation, the main control and circulation pump must be replaced.

If 120 VAC is not volts at MC J703-2 to J703-3, check the fuse at the points shown in the below illustration. If an open circuit is seen, replace the main control and circulation pump.

Here's the circulation pump(wash motor) for your model:


Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,822
Location
Vicksburg Junction, Arizona
Ok Rich, sounds good.

Let us know how it goes.

Jake
 

RichDe

Premium Member
Joined
Mar 3, 2022
Messages
3
Location
WA
Jake -

THANK YOU!!!

Parts arrived and it took about 30 minutes to install. Ran a quick cycle to make sure there were no leaks and the unit cycled properly.

Happy wife, happy life!

Rich
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,822
Location
Vicksburg Junction, Arizona
Excellent Rich, glad to hear the new circulation pump(wash motor) and machine control board fixed it.(y)

Thanks for the update!

Jake
 
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