Electrolux Oven Error Code F80

The F80 code indicates a communication problem between the User Interface Board and the Microwave Control Board. Specifically, the User Interface Board is unable to initiate communication with the Microwave Control Board. This error typically disables the microwave functions of the appliance while the oven section may continue to operate. The fault can stem from a power loss to the microwave section, a wiring issue, or a failed control board.

The conventional oven functions may still operate with an F80 code present, but the microwave section should be considered non-functional and should not be relied upon. Continuing to use the appliance without investigating the fault is not recommended, as an underlying wiring issue or power problem could worsen over time. Have the fault diagnosed before using the microwave portion of the unit.

Repair costs vary depending on the root cause. If the issue is a tripped breaker or a loose connector, the cost may be limited to a service call fee, typically in the range of $75 to $150. If a Microwave Control Board or User Interface Board requires replacement, parts and labor combined can range from $200 to $500 or more depending on parts availability and local labor rates.

A reset by cycling power at the breaker may temporarily clear the F80 code, but it will return if the underlying cause is not addressed. If the Microwave Control Board is not receiving power or the communication wiring is damaged, the error will reappear as soon as the appliance attempts microwave operation. A reset is a useful first step to confirm whether the fault is persistent, but it is not a repair.

Begin by opening the microwave door to check if the cavity light turns on, which confirms the microwave section has 120VAC power. If the light is off, check the circuit breaker and internal power connections. If power is present, inspect the wiring harness between the User Interface Board and Microwave Control Board for damage or loose connectors. If wiring is intact, the Microwave Control Board or the User Interface Board may need to be replaced by a qualified technician.