Thermador Display / User Interface Power Issue

Display is blank or very dim, but unit appears to be cooling.

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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

Failed display module, Loose display ribbon cable, Faulty low-voltage supply on main control, Moisture damage to interface

How to Fix / Troubleshooting

Safety: Disconnect power before removing control panel or door trim.

Steps:

  • Power reset: Unplug for 5–10 minutes and reconnect. If display remains blank, continue.
  • Access display: Remove screws securing the control panel and gently pull it out to access the display PCB and ribbon cable.
  • Check connections: Reseat the ribbon cable and inspect for corrosion or damage.
  • Replace display module: If backlight or segments are out, replace the display/user interface module.
  • Main control: If the display module is new and still not powered, the main control’s low-voltage supply may have failed and the board should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Display / User Interface Board
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