F1
Thermador Electronic Oven Control Failure

Range oven displays F1 and may beep continuously, often shortly after power-up.

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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

Internal control board fault, Failed relay on control, Corrupted firmware, Shorted keypad causing control error

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before accessing the control area.

  • Power cycle: Turn off power for 10 minutes, then restore. If F1 returns immediately, suspect the control board.
  • Check keypad connection: Remove the control panel and reseat the keypad ribbon cable on the control board.
  • Isolate keypad (advanced): Some Thermador controls allow testing by disconnecting the keypad ribbon and powering up. If F1 disappears with the keypad disconnected, the keypad is faulty; if it remains, the control board is faulty.

In most cases, F1 requires replacement of the electronic oven control (EOC) and/or keypad assembly. Follow Thermador service procedures for your specific model.

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Repair Difficulty

Hard 4/5

Required Part

Electronic Oven Control Board
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