E20
Gaggenau
User Interface / Communication Fault
Washer-dryer shows E20; control panel may be unresponsive or buttons do not register.
Advertisements
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.
Advertisements
Possible Causes
Faulty control panel (UI board), Loose ribbon cable between UI and main module, Moisture ingress into control fascia, Failed main control communication circuit
How to Fix / Troubleshooting
Safety first: Unplug the appliance. Avoid using liquids directly on the control panel.
- 1. Power reset: Leave the appliance unplugged for 5–10 minutes, then reconnect and test. Temporary glitches can clear with a reset.
- 2. Inspect control fascia: Check for signs of moisture, cracks, or detergent spills around the buttons and display. Allow any moisture to dry completely.
- 3. Check ribbon cable: Remove the top cover and control panel trim to access the ribbon cable between the UI and main module. Reseat both ends carefully.
- 4. Replace UI board if needed: If certain buttons never respond or the display is erratic, replace the user interface board with the correct Gaggenau part.
- 5. Main module check: If a new UI does not resolve E20, the main control module may be defective and should be replaced by a professional.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
User Interface Control Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements