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GE Dishwasher GDF620HMJ2ES Won’t start

Meyers

Premium Member
Joined
Jan 13, 2021
Messages
4
Location
GA
Model Number
GDF620HMJ2ES
Brand
GE
Age
1-5 years
Buttons work, but dishwasher won’t start.
When I close it, I’m not hearing a sound (and I think I usually do).
Lights do not blink. Everything looks normal .... except that it doesn’t start.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
115,891
Location
McMullen Valley, Arizona
Hi,

--->Check your main control board STATUS LED, Tell us how many times its FLASHING in a row, or if its STEADY ON or STEADY OFF.

--->Here's the main control board for your model: WD21X24900

GE control 3.jpg


Restore Power, then make sure the door harness connector is attached to the bottom of the control board casing connector when you view the STATUS LED light, Also make sure the 120 volt connector to it in the front is still attached to it also.

D-GE control board status led.jpg


Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
115,891
Location
McMullen Valley, Arizona
Ok, If the control board STATUS LED is STEADY ON--->UI personality not set, communications lost between UI and MC. You will need a multimeter to check for 13.5 Volts DC.

The UI operational voltage is output from the main control board on connector J722 pin 2 black/green to pin 5 yellow/blue. If 13.5 Volts DC is found here, then the UI Board is the problem.

Here's the UI(user interface) Board for your model: WD21X23462 Kit Svc Ui Top Logic

Snapshot_2 (1).jpg


Connector J722 is located on the metal casing side of the main control board.

J722.jpeg


It's the one on the left above the ethernet port.:)

Let us know what you find.

Jake
 

Meyers

Premium Member
Joined
Jan 13, 2021
Messages
4
Location
GA
Thanks... but, I didn’t read the initial instructions fully the first time. So sorry. Re-read them tonight and followed them.
I’m doing so, there is no LED light on at all. So, it would be STEADY OFF.

I apologize for the confusion.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
115,891
Location
McMullen Valley, Arizona
Ok, STEADY OFF indicates the main control board is bad.

--->Here's the main control board for your model you can order: WD21X24900

Do you know how to replace it?

Let us know how it goes.

Jake
 

Meyers

Premium Member
Joined
Jan 13, 2021
Messages
4
Location
GA
Thanks so much! We ordered the part. It arrived today, and we installed it (after watching a couple of videos). Our dishwasher now WORKS! Thank you so much for your help!!
 
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