Thermador User Interface Power or Communication Failure

Display is blank or unresponsive but interior lights work.

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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

Loose UI harness, Failed user interface board, Faulty main control board low-voltage supply

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before removing the control panel.

Steps to check:

  • Power reset: Turn off power for 5 minutes and restore. Observe if display returns.
  • Inspect harness: Remove the UI panel and check the ribbon cable or harness for secure connection and damage.
  • Replace UI: If wiring is good and still no response, replace the user interface board.
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Repair Difficulty

Medium 3/5

Required Part

User Interface Board
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