GE Dishwasher Error Code Pd
Plugged drain
Plugged drain - drain feedback switch still closed at 405 seconds, cycle cancelled.
First step from the service manual
Clean air gap and drain line.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for Pd.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What Pd means on a GE dishwasher
The Pd error code on a GE dishwasher indicates a plugged drain condition. Specifically, the control detects that the drain feedback switch remains in the closed position at the 405-second mark of the drain cycle, at which point the control cancels the active wash cycle. The drain feedback switch is the electrical component that signals the control board whether draining is actively occurring or has completed. When this switch stays closed beyond the 405-second threshold, the control interprets this as a failure to drain and triggers the Pd fault.
The most common root cause is a physical obstruction in the drain path. This includes blockages in the air gap (the cylindrical fitting mounted on the sink or countertop), kinks or clogs in the drain hose, or a blocked connection at the garbage disposal or sink drain tailpiece. Food debris, grease buildup, and foreign objects like broken glass or labels are frequent culprits. The drain pump itself can also become obstructed or fail mechanically, preventing water from moving through the system at a sufficient rate.
Diagnosing Pd should begin with the simplest mechanical checks first. Clean the air gap by removing its cap and clearing any debris from the internal passages. Inspect the drain hose for kinks, and verify the knockout plug has been removed if the drain connects to a garbage disposal. If the drain path is clear and the error persists, attention should shift to the drain pump motor and the drain feedback switch itself for electrical faults.
Source: manufacturer service documentation.
Common causes of Pd
- 01
Clogged air gap
Wiring / connectionThe air gap fitting on the sink or countertop is one of the most frequent points of blockage. Remove the cap and clean out any food debris or buildup from the internal passages.
- 02
Blocked or kinked drain hose
Wiring / connectionThe drain hose running from the dishwasher to the disposal or sink drain can develop kinks or accumulate grease and debris over time. Inspect the full length of the hose and clear any restrictions.
- 03
Clogged garbage disposal or drain connection
Wiring / connectionIf the dishwasher drains into a garbage disposal, a clogged disposal or a missing knockout plug can prevent drainage entirely. Run the disposal to clear it and verify the dishwasher connection port is open.
- 04
Drain pump obstruction or failure
Part replacementForeign objects such as broken glass, food debris, or labels can jam the drain pump impeller. A failed pump motor will also prevent drainage and keep the feedback switch closed. Inspect the pump for obstructions and test the motor for proper operation.
- 05
Faulty drain feedback switch
Part replacementIf the drain path is clear and the pump is functioning correctly, the drain feedback switch itself may be defective and stuck in the closed position, sending a false plugged-drain signal to the control board.
Frequently asked questions about Pd
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