Error code reference

Frigidaire Dishwasher Error Code i54

WP BLDC motor will not follow / rotor is locked

WP BLDC motor will not follow / rotor is locked - detected during start or running; caused by dirt, high load, or mechanical problems on impeller.

First step from the service manual

Check wash motor wire harness and connections to PCB

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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WP BLDC motor will not follow / rotor is locked

From Service Manual 856398, p.50:

1.Check wash motor wire harness and connections to PCB

2.Measure door lock assembly resistance across the PTC terminals. Expected: ~200 ohms cold, rising sharply once energized.

3.Inspect strike and latch alignment. A warped door or misaligned strike prevents the switch stack from closing in the correct sequence.

Part 5304517277

Door lock assembly

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