GE DISHWASHER GDT665 WON T START General Troubleshooting
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
91%
CONF
|
Main Electronic Control Board
The main control board on GE GDT series dishwashers is the primary failure point for units that display power but refuse to initiate a cycle. Source 2 notes that 'PF' (Power Failure) and '999' (Leak/Control Error) require board-level resets; if the board's internal DC power supply or logic relays fail, the unit will not respond to the 'Start' command even if the UI is illuminated.
SKU: WD21X24901
|
|
|
5%
CONF
|
Door Latch Assembly
The dishwasher logic requires a verified closed-circuit signal from the door latch microswitch before opening the water inlet valve. Over time, the latch housing can warp or the microswitch contacts can fail, leading the unit to 'think' the door is open, which prevents the cycle from starting without necessarily throwing a visible error code.
SKU: WD21X10490
|
|
|
4%
CONF
|
Pressure Sensor / Flood Switch
Referencing Sources 2 and 3, this model features 'Active Flood Protect.' If the pressure sensor detects a blockage or a false-positive flood condition (C4 code or 'LEAK DETECTED'), the firmware enters a safety lockout mode. This prevents the motor from engaging and stops the unit from starting to mitigate potential water damage to the home.
SKU: WD21X25468
|
DIY Repair Guide
Watch exactly how to replace the Main Electronic Control Board.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.