F9
Gaggenau Door Lock Circuit Error

Oven shows F9, door may be locked or will not lock/unlock

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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 motor failure, Faulty lock position switch, Broken wiring to lock assembly, Control board lock driver failure

How to Fix / Troubleshooting

Safety: Disconnect power before working on the door lock. Be cautious of sharp metal edges.

  • Check door status: Verify if the door is physically locked or unlocked. Do not force it.
  • Attempt reset: Turn power off for 5 minutes, then restore and see if the lock cycles.
  • Access lock assembly (technician): Remove top/front trim to access the door lock assembly.
  • Test motor and switches: Use a multimeter to test the lock motor and position switches for continuity and proper operation.
  • Inspect wiring: Check for broken or burned wires between the lock and control board.
  • Replace components: Replace the door lock assembly if defective. If lock tests good, replace the electronic oven control.
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Repair Difficulty

Hard 4/5

Required Part

Oven Door Lock / Latch Assembly
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