Dacor Range, Oven, Cooktop Error Code F20

F20 on a Dacor Discovery range indicates a fuse error caused by a defective power board. The power board manages electrical distribution throughout the appliance, and when its fuse circuit fails, the range displays F20 and stops normal operation. This code requires hardware repair and cannot be resolved through a simple reset.

No, you should not use the range while F20 is active. The code indicates the power board's fuse circuit has failed, meaning the board can no longer reliably manage or protect the appliance's electrical systems. Continuing to operate the range under this condition could pose an electrical safety risk.

The cost depends primarily on the price of the replacement power board and labor if a technician is hired. Power board replacements for Dacor Discovery ranges typically range from a few hundred to several hundred dollars in parts alone, with professional labor adding additional cost. Getting a parts quote specific to your model before proceeding is recommended.

The repair requires replacing the power board, which involves working with line-voltage electrical components. Technicians comfortable with appliance electrical work can perform this replacement, but it is critical to disconnect power to the range at the circuit breaker before beginning. Homeowners without experience in appliance repair should contact a qualified technician.

A reset, such as disconnecting power at the breaker for several minutes, is unlikely to permanently clear F20 because the fault is a hardware failure within the power board itself. The code may temporarily disappear but will return once the range is powered on and the board's fault is detected again. Replacing the power board is the required fix.