F23
Maytag
Heater Temperature Sensor Error
Washer-dryer combo shows F23 and may not heat water; cycle may end prematurely.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Open or shorted NTC sensor, wiring harness damage, failed main control board input circuit
How to Fix / Troubleshooting
Safety first: Unplug the unit and allow it to cool before accessing the heater area.
Step-by-step checks:
- 1. Locate NTC: Access the rear of the tub and find the temperature sensor near the heater element.
- 2. Inspect connector: Ensure the NTC connector is tight and free of corrosion. Reseat it.
- 3. Measure resistance: Disconnect the sensor and measure resistance at room temperature. Compare to the service manual values. Replace if open, shorted, or far out of range.
- 4. Wiring check: Inspect the harness from the NTC to the control board for cuts or pinched sections. Repair or replace as needed.
- 5. Control board: If sensor and wiring are good, the control board may not be reading the sensor correctly and may need replacement.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Water Temperature Sensor (NTC)
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements