F12Serious
Bosch Dryer F12 Error Code
A general fault in the electronic control board or display, often due to a power surge or component failure.
Common causes
- Faulty control board
- Faulty display board
- Power supply issue
How to fix it
- Unplug dryer for 10-15 minutes to reset electronics.
- Check for loose ribbon cables between boards.
- Inspect for burned components or bulging capacitors.
⚠ When to call a pro: If reset doesn't clear error, the control board likely needs replacement; call a technician.
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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.