Sub-Zero Microwave Error Codes

1 error code for Sub-Zero microwave models. Each links to the full diagnostic procedure from the service manual.

CodeDescription

ERRORAH sensor failure detected during sensor cooking mode

MyPros+ Max

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M+ Max·Sub-Zero Microwave

ERROR on my Sub-Zero Microwave

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AH sensor failure detected during sensor

From Service Manual 858562, p.14:

1.Check sensor wire connections and/or AH sensor. Perform water load cooking test per Procedure R.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC; a drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part WPW10804018

Electronic control board

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