ERROR CODE EXPLAINED
KitchenAid Microwave
KitchenAid Microwave F3 H Error Code
What it means
KitchenAid indicates this code may be associated with the Humidity Thermistor or the associated wiring.
Try this first
- Turn the microwave circuit breaker(s) off for 1 minute.
- Restore power at the circuit breaker(s).
- Monitor the oven for 1 minute to make sure the error code does not return.
- Verify oven operation.
Can I keep using it?Run the manufacturer power-reset procedure before continuing normal microwave use.
Repair usually required?Service may be required if the code returns after the one-minute power reset.
If the error keeps returning
Use the linked official KitchenAid Product Help article for the manufacturer procedure.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.