Thermador Oven F19 (C/CM/CJ Legacy Models): Miscellaneous Power/Relay Board Error

What F19 means

F19 is the catch-all board code for older Thermador C271 through CJ302 ovens, labeled a miscellaneous power/relay board error in the legacy service document. It does not point at a single sensor or switch, which makes the connections between the boards the first place a technician looks. Since newer Thermador ovens can print F19 differently, we match it to your model before testing.

Usual causes of F19

Loose or damaged connections between the power/relay board and the control display board
Power/relay board error, replaced if connections are good

✓ A safe check worth trying

1. Press OFF or switch the oven off at the circuit breaker; after three minutes turn the power back on. 2. If F19 returns, note it and call us. Board connector checks and replacement are technician work, so please leave the control area closed.

! Why you should stop here

A miscellaneous error needs measurements, not a guess
Board work involves powered parts
Board availability is checked against your model number before we write the quote

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.

→Same appliance

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 F14Thermador Older C-Series Oven, Control Display EEPROM Error F14 F53What F53 Means on a Legacy Thermador C/CM Wall Oven: Upper Door Stuck Locked

F19F19 questions

Why is F19 so vague?

The table groups unspecified board problems under one code. That is why the first step is checking the connections, rather than assuming the board has failed.

Is F19 the same fix as F10?

The source gives the same two-step action: check connections between the power/relay board and display board, then replace the power/relay board if they are fine. The error names differ.

Can I keep using the oven if F19 goes away?

If it clears and stays away, normal use is reasonable. If it returns even once more, stop using the oven and call us so we can look before it stops mid-cycle.