Brand: KitchenAid Model Number: kudc10fxss5 Main Symptom: no display and beeping when closed
**What happens & when:**KitchenAid dishwasher beeps when closed and no display on the control panel (kudc10fxss5)
I have an older KitchenAid dishwasher (kudc10fxss5). It worked previously. However, this week, I closed the machine and it began beeping repeatedly. I opened it, figuring that the problem was that I had accidentally hit the button to start the cycle. Then I saw that none of the lights were turn on along the control panel.
I tried:
Pressing Start/Resume and Cancel/Drain even though they weren’t lit, and it did nothing.
Turning off the circuit breaker, waiting 60 seconds, and turning it back on. No change.
Looking behind the drip plate. Photos attached. I don’t seem to have a drip tray, but I didn’t notice any moisture on the floor below the machine.
Pressing the sequence on the control panel to pull up the service mode. Doesn’t seem like the control panel took an input from any button presses.
Opening the control panel cover. I wanted to use a multimeter to check the fuse, but I couldn’t find a fuse in this model, and I didn’t know how to check the control panel or the control board. See photos.
This issue isn’t covered in the manual. What’s my next move?
With the power supply turned off, if you disconnect the user interface panel from the main control, turn the power supply on, then close the door, will the drain pump turn on within a minute? If it does, the user panel would be the likely cause of failure. Unfortunately, it looks like the user panel is discontinued by the manufacturer and no longer available. If the drain pump does not turn on, the main control would be the likely cause.
Sorry, I’m confused. You’re saying if I close the door in those conditions, I should hear the drain pump turn on like in normal operation. But I don’t normally hear a drain pump when I close the door. I only hear something if I start a cycle by using the interface panel. So I’m not sure I’d expect to hear a drain pump turn on now. Or am I misunderstanding?
I’d love for there to be a simple test. I tried the complicated way but not sure if I did correctly. Using the official service tech document (W10321878C), I located jumper W2 and tested pad P10-1 on the control board. Tested resistance with multimeter set to 200 ohms. Reading was OL/1. But then I switched to continuity mode and got a continuous beep, so I think that confirmed F9 fuse is intact and not blown. Not really sure.
The testing procedure where the user panel wire harness is disconnected from the main control initiates an automatic test. This is a process used to identify where a failure may be when there is a stuck key or a dead display. When the wires are disconnected, the power supply turned on, then the door is closed, the control goes into a test mode where either the drain pump turns on or it does not. If it turns on, it means the main control should be working correctly, indicating that a stuck key or dead interface failure would likely be due to an issue with the keypad itself.
I turned on the power and then closed the door. Purple wires are still attached to the latch (unsure if I’m supposed to disconnect) but the control buttons are removed along with the front of the door itself. When I close with latch, All I hear is beeping for about a full minute from the control board. Then it stops. I don’t hear anything else.
Based on that, it sounds like the issue would likely be with the main control itself. If there are no visible indicators of wire damage, corrosion, or keypad damage, replacing the main control should correct the issue.
