F4 E4 — Microwave Oven Humidity Sensor Error

What does F4 E4 mean?

The oven has detected a problem with the microwave oven humidity sensor. This sensor helps the oven monitor moisture levels, especially during functions like steam cycles.

• Loose connection to the humidity sensor
• Faulty humidity sensor
• Problem with the Microwave Appliance Manager board

Click steps to track your progress.

1. 1

   Unplug the oven or disconnect its power at the circuit breaker for at least 10 seconds.

2. 2

   Plug the oven back in or restore power.

3. 3

   Place a microwave-safe cup of water inside the oven cavity.

4. 4

   Start a microwave cooking function that uses the humidity sensor, such as a Steam cycle, for 1 minute.

5. 5

   Observe if the error returns. If it persists, contact customer service for assistance.