Kenmore Washer Error Code F/23

The F/23 code means the washer detected a heater failure because the water temperature did not increase by at least 86°F (30°C) within the first 40 minutes of a heated wash cycle. The control board monitors temperature throughout the heating phase and stops the cycle when this threshold is not met. The most common cause is a failed internal heating element, though wiring issues and a faulty temperature sensor can also trigger this code.

The washer halts the cycle when the F/23 code is triggered, so it will not complete a normal wash. Running cycles repeatedly with a known heater fault is not recommended, as it can stress other components and will not produce properly heated wash results. Disconnect power and diagnose the fault before attempting further use.

Unplugging the washer or disconnecting power may temporarily clear the displayed code, but the F/23 error will return as soon as the machine attempts a heated cycle if the underlying problem has not been resolved. A reset does not fix the heating element, wiring, or sensor that caused the fault. The root cause must be identified and corrected for the error to clear permanently.

Some steps are accessible to a knowledgeable DIYer. After disconnecting power, you can inspect the wiring connections at the heating element for looseness or corrosion, which sometimes resolves the issue without any parts. Testing the heating element with a multimeter requires basic electrical knowledge, and replacing it requires disassembling part of the washer. If the control board is at fault, professional diagnosis is recommended.

Costs vary depending on the failed component. A replacement heating element typically costs between $20 and $60 for the part alone. If professional labor is involved, total repair costs can range from $100 to $250 or more depending on your location and the technician's rates. A control board replacement, if needed, will be at the higher end of the cost range.