F05Warning
KitchenAid Refrigerator F05 Error Code
Defrost thermistor (sensor) reading out of range. Can cause incorrect defrost timing.
Common causes
- Faulty thermistor
- Loose connection
- Short or open in sensor circuit
How to fix it
- Locate defrost thermistor (near evaporator), check for secure connection.
- Test resistance with multimeter (should change with temperature).
- Replace if resistance is erratic or open.
⚠ When to call a pro: If thermistor tests bad and replacement does not clear code.
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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.