Dishwasher runs nonstop

Dishwasher Repair
1

Brand: IKEA (Whirlpool)
Model Number: IDT930SAGXO
Main Symptom: Dishwasher runs nonstop
What happens & when: Start the dishwasher the night before, still running in the morning.

Error Code (if any): n/a
Parts or tests already tried: n/a
Photos / video link:

2

Does it do this on all cycles or does it work correctly if you select any cycle other than the Sensor cycle?

3

I have only tried the “Normal” cycle.

4

Ok, the issue is with the main control board W11250495 or the turbidity sensor W11084121 connected to the side of the sump assembly under the dishwasher.

You might try running the diagnostic cycle to reset everything. I’m attaching the tech sheet for this model below, it goes over entering and running the diagnostic service cycle. That cycle resets any previous settings the control has stored and treats the next 3 regular cycles after the diag cycle as calibration cycles.

If that diag cycle does not seem to change anything and the dishwasher keeps running unending cycles starting with the first one after diag has been run then you’ll be replacing the main control board.

If you see the dishwasher running correctly for those 3 cycles after diag and then it goes back to running unending cycles, disconnect the dishwasher from power, access the turbidity sensor under the appliance and disconnect it, and leave that sensor disconnected. Then, try the process of resetting everything by running the diag cycle and running those regular cycles to recalibrate and see if everything stays normal after that. If so then the turbidity sensor needs to be replaced, if not then the issue is with the control board.

tech-sheet-w11266095-revA.pdf (1.6 MB)

https://www.appliancepartspros.com/whirlpool-cntrl-elec-w11250495-ap6339920.html

https://www.appliancepartspros.com/whirlpool-sensor-w11084121-ap6048025.html

5

Very helpful. Many thanks, much appreciated. Now I know how to spend my weekend. Cheers.