Thermador Older C-Series Oven, Control Display EEPROM Error F14

What F14 means

F14 on a Thermador C271, C272, C301, C302, CM301, CM302 or CJ302 oven reports an EEPROM error on the control display board, the chip that stores settings. The legacy table's action line reads replace power/relay board, printed exactly that way in the source, even though the error names the display board. We check both on site, and newer Thermador ovens may use F14 differently.

Usual causes of F14

EEPROM memory problem on the control display board
Power/relay board, the part the source's action line lists

✓ A safe check worth trying

1. Use the three-minute reset only: touch OFF or flip the breaker, wait, then restore power and see if the display starts normally. 2. If F14 reappears, note it and call us. Do not open the control section; both boards are connected to mains-fed parts.

! Why you should stop here

The source naming one board in the error and another in the action calls for testing
Replacing the wrong board costs money and time
We quote in writing first, and legacy parts are confirmed by model number

Taking off a panel yourself does not by default void a manufacturer warranty, yet it can lead to accidental damage, and some manufacturers attach their own service terms. Read your warranty paperwork, or ask us, before you decide.

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More Oven codes

F12F12 on a Legacy Thermador C-Series Oven: Vcc Lift-Off on the Power/Relay Board F51F51 on an Older Thermador Wall Oven (C/CM-Series): Upper Door Stuck Unlocked F2F2 on an Older Thermador Wall Oven (SC, SCD, SM, SMW): Temperature or Door Light During Self-Clean F13Thermador C/CM/CJ Wall Oven Code F13: Power Board Not Calibrated, Air Switch Check F52Thermador Wall Oven F52 in the Legacy C/CM Family: Upper Door Reads Locked and Open F3Thermador Wall Oven F3 in the Legacy SC/SM Family: Open Oven Sensor F19Thermador Oven F19 (C/CM/CJ Legacy Models): Miscellaneous Power/Relay Board Error F53What F53 Means on a Legacy Thermador C/CM Wall Oven: Upper Door Stuck Locked

F14F14 questions

What is an EEPROM?

It is a small memory chip that keeps settings even without power. If it cannot be read or written, the control cannot trust its own configuration, so it shows F14 and stops.

Why does the action mention the power board?

The service table prints replace power/relay board as the action. Because the error text names the display board, we verify on site which board has failed before quoting.

Will a reset clear F14?

The manual's three-minute reset may clear a one-time glitch. A stored-memory problem tends to return, and then the oven needs an inspection and a written quote from us.