Microwave displays F3E2, often on models with steam/humidity sensing

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Contaminated humidity sensor, Failed humidity sensor, Wiring harness issue

Safety: Unplug the microwave before servicing.

Clean sensor area: Remove any cover over the humidity sensor and clean around it with a damp cloth. Do not saturate the sensor.
Inspect sensor: Look for corrosion, cracks, or physical damage.
Check harness: Verify the harness from the sensor to the control board is secure and undamaged.
Replace sensor: Install a new Whirlpool humidity sensor if cleaning and wiring checks do not resolve the error.

Medium 3/5

Humidity Sensor

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