Brand: GE
Model Number: GDT605PSM0SS
Main Symptom: Stops mid-cycle, all lights blinking
What happens & when:
I have a GDT605PSM0SS that I have an intermittent issue with, i have done a little diagnosing and am really hoping someone has a suggestion here on a direction forward. I really don’t like getting rid of a mostly good appliance – such waste (and cost)!
What’s happening:
- The dishwasher will just stop running with ALL the lights on the top of the door blinking. Just off and on, no specific pattern like an error code or anything. I go to the breaker box, flip the breaker for the dishwasher, leave it off for a period of time and turn it back on. It will start up again where it left off, and usually fail again within a couple minutes. I have left the breaker off for 10 second up to over an hour – time off doesn’t seem to have any effect. The only setting i have on consistently is “heated dry”
What I have found:
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In AUTO mode, it is pretty much guaranteed to do this. It pretty consistently does it any mode though now.
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If I unplug the turbidity sensor it works complete fine, every time. I found this out because when I replaced the turbidity sensor, the connector got wet from water coming out, I left it unplugged overnight and forgot to plug it back in. Right now I have this unplugged, and it has run fine every time.
What I have done.
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My UI board died, I replaced that in April, '25 (WD21X31904)
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my research suggested it was the main control board. So I replaced that August '25 (last month). It apparently wasn’t so i have an extra one now… (WD21X32165)
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My drain pump did die. I replaced that in September. (WD19X24829)
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I have run diagnostic mode (service diagnostics). Everything seems to be working, no error codes. all the components work.
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I have replaced both the door (WD21X10545) and DC wire (WD21X24400) harnesses. The DC wire harness included a new flood switch.
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I have replaced the turbidity sensor (WD21X22830).
I am hoping someone has some suggestion here, I’m running out of things to replace, and I feel like at this point I can only guess.
Wow, it sounds like you have your hands full with this one. I am wondering if heat is affecting so me electrical component. As the DW runs, heat builds up and can affect even wiring. Take a look at the AC wiring underneath and around the heating element.
You’re comment on heat actually made me look at the heating element, wondering if it was possibly the issue. When I was looking at that I noticed that the “Gasket - Sump Manifold” was starting to degrade – I touched it and I could tell it was starting to fall apart. So I picked up both the heating element (WD05X35098) and the gasket (WD08X22758) and replaced them at the same time. The heating element had build up on it, and I had to remove the dishwasher for the gasket, so I wanted to change them out at the same time.
One thing I found about the heating element, it seemed one of the plastic “screws” that held one side on was loose, it felt like it was already started when i took it off. And that connector had corrosion on it like water might have been leaking. The element checked out for continuity, but only when i hit certain parts of the metal. Other parts where there was corrosion did not check out.
Between the heating element and the gasket, I am now assuming I had a leak that was very small, and probably exacerbated by heat. I am not sure how a leak on the heating element would have caused any electrical failure elsewhere in the dishwasher – there is nothing under that for water to hit, the wire harness runs upward from there, so it couldn’t travel. I assume it would be the corrosion itself cause it to have trouble turning the element on. I have noticed that the dishes seem to be drying better since replacing this, so I think something was going on here.
The gasket seems more likely to possibly cause a small drip onto maybe the turbidity sensor or another connector somewhere. But I definitely needed to replace this piece either way since I could tell it was starting to disintegrate.
Either way, I am 3 runs in using Auto mode, bottle jets, etc without any failure. Fingers crossed I might have finally solved it.
I haven’t had any issues, it seems to have been the heating element or the gasket…