F9
Bosch
Door Lock Position Error
Bosch range oven displays F9 and the door may remain locked or unlocked incorrectly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Door lock switch not changing state, Bent latch, Failed lock motor, Wiring fault between lock and control
How to Fix / Troubleshooting
Safety first: Disconnect power. If the door is locked with food inside, allow the oven to cool before attempting manual release.
- Manual release: On some models, you can access a manual release lever through the top or rear panel to open the door.
- Inspect lock assembly: Access the door lock assembly and check for bent or jammed components.
- Test switches: Use a multimeter to test the lock position switches for proper open/closed operation as the lock moves.
- Replace lock assembly: Replace the door lock motor and switch assembly if defective. If the lock is good, suspect the control board.
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Repair Difficulty
Hard
4/5
Required Part
Oven Door Lock Assembly
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