Error code reference

Hotpoint Washer Error Code F18

Communication error between 3 phase motor control and power module.

First step from the service manual

Change Power Module.

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

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F18 on my Hotpoint Washer

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Communication error between 3 phase motor

From Service Manual 299850, p.22:

1.Change Power Module.

2.Inspect the communication harness between the main control and the UI board for bent pins or unseated connectors at each end.

3.Measure supply voltage to the UI board. Expected: 5 VDC at the interface connector; a low or missing rail points back to the main control supply.

Part WR55X30606

User interface board

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