F40Warning
KitchenAid Oven/Range F40 Error Code
The oven door lock mechanism is not functioning properly.
Common causes
- Door lock motor failure
- Faulty door latch assembly
- Control board issue
How to fix it
- Unplug the range.
- Listen for the lock motor when trying to self-clean (if applicable).
- Inspect the door latch for obstructions or damage.
- Manually check if the lock moves freely.
⚠ When to call a pro: If door lock does not operate, call a technician to replace the lock assembly.
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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.