Model reference

Sharp R-420BK

Name: Sharp R-420BK
Brand: Sharp

Microwave

2 documents1 error code

Available documentation

Service Manual - Microwave Oven Models R-420BK / R-420BW48 pg
Covers this model
Service Manual - Microwave Oven Models R-430BK/R-430BW/R-430BD36 pg
Covers this model

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ERROR on my Sharp R-420BK

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Displayed when the AH sensor cannot

From Service Manual 864303, p.35:

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

2.Measure door lock assembly resistance across PTC terminals. Expected: ~200 ohms cold.

3.Inspect strike and latch alignment. A misaligned strike prevents the switch stack from closing.

Part W10810403

Door lock assembly

CodeMeaning

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