Hi Derek, Its either the door vent shorting out, the control panel keypad shorting out, or the control board that's bad.
First check the door vent. Disconnect all the wire connectors to your door vent and see if it runs through a complete cycle.
Start reading what bigbuck said at post#18 here:
So after successfully running the one hour cycle with the vent wire harness disconnected, I ran the ProWash/ProDry cycle with the vent harness disconnected with 100% success.
www.applianceblog.com
Your model uses the exact same door vent. If it runs through the complete cycle and everything is back to normal, then order and replace the door vent assembly.
Here it is for your model you can order:
WPW10469574 Vent
To access the vent assembly you will need a T-15 torx screwdriver: Remove 4 screws (long) across top of door, then remove 10 screws (short) on the sides, then the outer door panel pulls off.
If disconnecting the door vent didn't resolve it, then we check the control panel keypad and control board.
Put the wire connectors back on the door vent.
Do this below:
- Unplug dishwasher or disconnect power.
- Disassemble door and disconnect keypad connection from control board or LCD display module.
- Verify all other connections to control board are made.
- Reassemble door, but do not close door.
- Plug in dishwasher or reconnect power.
- Wait at least 7 seconds for control board to power up completely.
- Close dishwasher door and monitor control board response:
A. If control board is OK (no longer sees stuck keys with keypad unplugged), it will respond by turning on the drain motor for 2 minutes. Replace keypad and console.
B. If control board is not OK (still sees stuck keys with keypad unplugged), it will not turn on drain motor. Wait for at least 10 seconds. If there is still no drain response, then replace control board or LCD display module (whichever one the keypad was connected to).
Here's the BLACK control panel keypad assembly for your model:
WPW10481070 Panel-Cntl
Here's the ANY OTHER COLOR BESIDES BLACK control panel keypad assembly for your model:
WPW10481071
Here's the control board for your model:
W10866118 Cntrl-Elec
Let us know what you find.
Jake