F25Serious
Maytag Refrigerator F25 Error Code
The defrost heater circuit is open or not working.
Common causes
- Blown defrost heater
- Failed defrost thermostat
- Wiring disconnect
How to fix it
- Unplug refrigerator.
- Access defrost heater in freezer.
- Check resistance of heater (should be low ohms).
- Test defrost thermostat for continuity when cold.
⚠ When to call a pro: If both heater and thermostat are good, control board may be faulty.
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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.