Error code reference

Maytag Microwave Error Code F3H

Humidity sensor failure.

Maytag codes Maytag microwave codes

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Diagnostic procedure

The full F3H procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Unplug microwave oven or disconnect power. Connect a new humidity sensor to the electronic control (at P1). If no failure code appears when starting sensor function, replace humidity sensor. If failure code persists, replace electronic control.

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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The full F3H procedure

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