F1 E5 - Microwave Oven Inverter Error

What does F1 E5 mean?

This error code indicates a problem with the microwave oven's inverter system. The inverter is a key component for microwave heating, so this error means the oven may not be able to cook food.

• A problem with the microwave oven door interlock switches.
• An internal issue with the inverter board or magnetron.
• A fault within the Microwave Appliance Control Unit (ACU).

Click steps to track your progress.

1. 1

   Unplug the oven or disconnect power at the circuit breaker. Wait 10 seconds, then restore power.

2. 2

   Place a microwave-safe cup of water inside the oven. Start a microwave cooking function for at least one minute to check if the error reappears.

3. 3

   Verify the door interlock switches are working correctly: the microwave light should be on when the door is open and off when the door is closed. Ensure the door closes and latches properly.

4. 4

   If the F1 E5 error persists after these steps, the oven requires professional service.