Error code reference

GE Microwave Error Code OPEN STEAM SENSOR SERVICE MAY BE NEEDED

Open humidity sensor detected.

First step from the service manual

Check humidity sensor plug-in connection on left side upper of cavity.

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

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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OPEN STEAM SENSOR SERVICE MAY BE NEEDED on my GE Microwave

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Open humidity sensor detected

From Service Manual 704815, p.27:

1.Check humidity sensor plug-in connection on left side upper of cavity.

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 WR55X10942

Main control board

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First step from the service manual

Get the full diagnostic procedure for OPEN STEAM SENSOR SERVICE MAY BE NEEDED.

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