F15Warning
Whirlpool Refrigerator F15 Error Code
The defrost termination thermistor is not reading correctly, preventing defrost cycle end.
Common causes
- Failed defrost thermistor
- Wiring issue
- Positioning problem
How to fix it
- Check for frost on evaporator coils
- Test thermistor continuity
- Ensure thermistor is properly clipped to coil
⚠ When to call a pro: If replacing thermistor does not solve, defrost board may need replacement.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.