E812Warning
Bosch Refrigerator E812 Error Code
The NoFrost defrost system is not completing properly, risking ice accumulation.
Common causes
- Defrost sensor intermittent failure
- Heater contact relay sticking
- Evaporator fan speed issue
How to fix it
- Unplug for 15 minutes to force a defrost reset.
- Check the defrost sensor resistance as in E212.
- Ensure the evaporator fan is spinning freely.
⚠ When to call a pro: If the error recurs frequently, a technician should test the defrost components and control board.
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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.