Oven display shows F9 and the touch controls or rotary selector do not respond correctly.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Disconnect the oven from mains power before removing the control panel.
Reset and dry-out:
- Turn off power for at least 5 minutes to reset the electronics.
- If the error appeared after heavy steam cooking, leave the door open and allow the control area to dry for several hours, then restore power.
Connection check:
- Remove the front control panel according to the service instructions.
- Inspect the flat ribbon cable and connectors between the user interface board and the main control module.
- Reseat the connectors firmly; check for corrosion or bent pins.
- If there are signs of liquid damage on the UI board, it should be replaced.
If F9 persists after reseating cables and drying, the user interface or main control board may need replacement. This is typically a technician-level repair due to the fragility of glass and electronics.
Repair Difficulty
Required Part
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