Model reference

Whirlpool WML55011HW5

Name: Whirlpool WML55011HW5
Brand: Whirlpool

Microwave

2 documents3 error codes2 service modes

Available documentation

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M+ Max·Whirlpool Microwave

F1E4 on my Whirlpool WML55011HW5

M+

MW relay failure (Relay 4903 on ACU).

From Tech Sheet W12203393, p.45:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WPW10804018

Electronic control board

CodeMeaning

diagnostic1. Plug in microwave oven or reconnect power, in idle mode, close the door, turn off hood light and…
Diagnostic/Test ModeWith microwave plugged in, in idle mode, close the door, turn off hood light and hood fan. Close…

Full entry steps, exit procedures, and test sequences are available in Max.

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