May 1, 2025

Thermador Range / Stove / Oven Fault Codes

If your Thermador oven is displaying an error code, use this complete guide to understand what the code means and how to fix it. Below is a list of all common Thermador fault codes and their recommended solutions, including both F-codes and E-codes.

Thermador Fault Code List & Solutions

• F0: Electronic oven control failure
  Replace electronic oven control (EOC or clock).
• F1: Electronic oven control failure
  Replace EOC (electronic oven control).
• F2: Oven temperature too hot
  Replace the relay board if faulty. Check and replace oven temperature sensor (RTD). If failure repeats, replace the EOC (clock).
• F3: Open oven temperature sensor (RTD)
  Inspect sensor harness and connection to control board. Replace sensor if wiring is okay.
• F4: Shorted oven temperature sensor (RTD)
  Check wiring and connections. Replace the RTD sensor if wiring is good.
• F7: Function key stuck
  Inspect all keypad buttons. Replace EOC if issue persists.
• F8: Internal logic failure
  Check oven sensor and harness. If wiring is good, replace the sensor and EOC.
• F9: Internal logic failure
  Check door latch and switches. Replace any defective components. Replace EOC if necessary.
• Fd: Bake and Broil relays activated simultaneously
  Inspect and replace relay board if damaged. Replace EOC if issue persists.
• E1: Control board problem – Replace the control board.
• E2: Faulty oven sensor (RTD) – Check and replace the sensor. Replace control board if sensor is good.
• E3: Open oven sensor – Replace oven temperature sensor (RTD).
• E4: Shorted oven sensor – Replace oven temperature sensor (RTD).
• E5: Control board problem – Replace control board.
• E6: Control board problem – Replace control board.
• E7: Control board problem – Replace control board.
• E8: Control board problem – Replace control board.
• E9: Latch switch problem – Inspect latch switches and components. Replace faulty part.
• E10: Control board problem – Replace control board.
• E11: Latch switch problem – Replace faulty latch switch or component.
• E12: Latch switch problem – Replace faulty latch switch or component.
• E13: CT Models: Check power to latch motor. CMT Models: Control board not converted – follow conversion procedure.
• E14: Latch switch problem – Replace faulty latch switch or related component.
• E15: Control board problem – Replace control board.

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