Electrolux Oven Error Code F82

The F82 error code on Electrolux Icon model ovens indicates a microwave thermistor open circuit fault. The thermistor is a temperature-sensing resistor located in the microwave cavity that continuously feeds temperature data back to the microwave control board. When the control board cannot read a valid signal from the thermistor, either because the thermistor circuit is open (broken) or because the thermistor is reading no temperature rise when heat should be present, the F82 code is triggered. This fault is exclusive to the Icon combination oven models that include both microwave and convection functionality.

The two primary failure scenarios behind F82 are distinct but produce the same error. In the first scenario, the thermistor itself has failed in an open condition, meaning the electrical circuit through the sensor is broken and the control board receives no usable resistance reading. In the second scenario, the thermistor circuit may be intact but the convection heating element is not generating heat, so when the control monitors for a temperature rise during a convection cycle, none occurs and the code is set. This is why the first diagnostic step involves running a convection function and confirming whether the cavity temperature actually rises.

Diagnosing F82 requires checking both the thermistor and the convection element. The thermistor can be tested for continuity and proper resistance values at operating temperature. Wiring between the thermistor and the control board should be inspected for breaks, loose connectors, or heat damage. If the element is not heating, the element itself, its associated relay on the control board, and the wiring harness connections to the element should all be evaluated before concluding the control board is at fault.