Brand: GE Dishwasher
Model Number: GDF620HSJ5SS
Main Symptom: Does not turn on
What happens & when:
Error Code (if any): N/A
Parts or tests already tried: boards
Photos / video link:
Which control board did you replace your model Has 2
- ( GE WD21X31902C Dishwasher User Interface Control Board | Genuine OEM Part ) Located behind the user interface on the control panel ( GE WD34X22536 Dishwasher Control Panel | Genuine OEM Part )
- Main control panel ( GE WD21X24901C Dishwasher Main Control Board | Genuine OEM Part ) located behind kick plate underneath the dishwasher
Both control boards were replaced.
Is the control board illuminating any buttons or display? Have you checked your power coming in?
There is no illumination and electrical power is coming into the dishwasher.
Well i was going to walk you thru doing some diagnostics but if the user interface isn’t lighting up I don’t think you’ll be able to but lets give it a try. I have attached a couple of guide sheets for checking the codes and I’d be really interested to know the status of the LED on the main control board
Yes, the dishwasher is out no lights. I don’t see any attachments sent.
Received. Which page should I be exactly reading? Remember there is no power, blinking lights nothing but, there is electricity going to the unit.
I would loo0k at that last one about the blinking “heartbeat” light on the control board
So what you are saying is I should open the unit turn the power on a view the main control board to see if the power light is blinking?
Got it but, I will have to do it, unfortunately, tomorrow. My wife and I are out. Once I open I will check out the blinking lights on the main board with what it corresponds on the sheet.
ok Sounds good. Just let me know
It has a solid green light only. Also, as I previously mentioned, I changed the control board as well. This is the new model board you move the jumpers that match your model # GE dishwasher. As seen in the photo below 4 and 1.
. This is the new version of it that you move the jumpers that match your model # GE dishwasher
A steady (solid) green LED on the main control board is actually a good sign—it tells us the main control has power and is working. Most of the time, when you see that solid green light, it means the main board has lost communication with the User Interface (UI) board in the door.
Here’s how I’d go about it:
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Start with a hard reset.
Turn the dishwasher off at the breaker (or unplug it if you can) for about 5–10 minutes, then restore power. Sometimes that’s enough to clear a communication glitch. -
Take a look at the ribbon cable.
With the power disconnected, remove the inner door panel and inspect the ribbon cable that connects the UI board to the main control board. Make sure it’s fully seated on both ends and look closely for any damage, corrosion, pinched wires, or even mouse damage. A bad connection here is one of the most common causes of this issue. -
Test the door latch switch.
If the dishwasher doesn’t think the door is latched, it won’t run properly. Make sure the latch closes securely, then check the switch for continuity with a multimeter while opening and closing the latch.If you’d like to know more about using a multimeter, we’ve put together a comprehensive tutorial—check out the link in the description.
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The UI board is the most likely suspect.
If the ribbon cable and door latch both check out, the User Interface (UI) board is the most likely failed component. Since the main control board has a solid green LED, we already know it’s powered up and trying to communicate.
I’ve done the breaker swtich off a few times and no response. All the cables are fine but, I will check them again. The door closes I don’t have a multimeter so I will not be able to check. Personally, I think it’s with theses new control boards they have now. I have read a lot of problems with them. They are universal now and you have to move the jumpers to match your dishwasher
That is very true. If nothing else maybe you can get another board?