Gaggenau
User Interface / Control Lock or Button Failure
Dishwasher powers on but will not start any program; Start button unresponsive, no error code.
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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
Child lock (control lock) activated, stuck or failed Start button, faulty user interface board, loose UI ribbon cable
How to Fix / Troubleshooting
Safety: Disconnect power before removing the door panel.
Steps:
- Check control lock: Many Gaggenau dishwashers have a child lock. Refer to the user manual to deactivate (often by holding a specific button combination for several seconds).
- Reset appliance: Turn off power for 5 minutes, then restore and test.
- Inspect UI panel: Remove the inner door panel to access the user interface. Check that the ribbon cable is fully seated.
- Test buttons: Use a multimeter to test the Start button contacts or use service mode key test if available. Replace the UI board if buttons are non-functional.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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