Electrolux Oven Error Code F31

F31 means the appliance control board has detected a short circuit condition in the lower oven RTD temperature sensor probe circuit. The board monitors the probe's resistance continuously, and when the resistance drops below the expected range, it triggers this fault code. The problem can be in the probe itself, the wiring, or the connectors between the probe and the control board.

You should not continue using the oven while F31 is active. The fault indicates the oven cannot accurately monitor the lower oven temperature, which means it cannot regulate heat properly. Operating the oven in this condition could result in overheating or underheating, and in some cases the oven may not function at all until the fault is resolved.

If only the RTD probe needs replacement, parts and labor typically range from around $100 to $250 depending on the model and local labor rates. If the wiring harness is damaged and needs replacement, costs can range from $150 to $400 or more. Control board replacement, if required, is generally the most expensive repair and can range from $250 to $500 or higher with labor.

A knowledgeable DIYer can diagnose F31 by disconnecting the lower oven RTD probe, measuring its resistance with a multimeter at room temperature, and comparing that reading to the probe resistance chart for their model. If the probe is shorted, it can be replaced as a relatively straightforward repair. Wiring repairs inside the oven cavity are more involved and may require a technician if the damage is extensive.

Resetting the oven by cycling the power or tripping the circuit breaker may temporarily clear the F31 code, but it will return if the underlying problem is not fixed. The short circuit condition in the probe circuit must be identified and corrected for the fault to stay cleared.