F03Serious
Miele Oven/Range F03 Error Code
The oven temperature exceeds safe limit. Usually a stuck relay or sensor fault.
Common causes
- Shorted temperature sensor
- Welded heating relay
- Main board failure
How to fix it
- Immediately power off oven and wait 30 minutes.
- Reset oven by disconnecting power for 5 minutes.
- If error returns, do not use oven.
⚠ When to call a pro: Call a technician immediately. Do not attempt further DIY as this is a safety hazard.
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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.