Thermador Wall Oven E14 on CT/CMT Ovens with Dreefs Control: Loose Latch Switch

What E14 means

When E14 appears on a legacy Thermador CT or CMT oven with a Dreefs control, the latch switch is the suspect. The second page of the service document describes it as loose and says to check the latch for proper operation. Heat is switched off on the failed oven, and the source does not tell you to expect the message to clear on its own, so inspection is the sensible next step.

Usual causes of E14

Loose latch switch
Latch assembly not seating or operating properly
Intermittent contact in the latch wiring (a technician check)

✓ A safe check worth trying

1. Set the selector to OFF and nudge it counterclockwise to end the alert. 2. Make sure the oven has cooled, then close the door normally without slamming it. 3. Try a short bake only if the oven responds. 4. If E14 returns, switch the oven off at the breaker and call us.

! Why you should stop here

A loose switch can pass a quick test and fail mid-cycle
Tightening or replacing the latch needs the door area opened
Legacy latches are confirmed by model number, and our quote comes in writing first

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

F13Thermador C/CM/CJ Wall Oven Code F13: Power Board Not Calibrated, Air Switch Check 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 F14Thermador Older C-Series Oven, Control Display EEPROM Error F14 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

E14E14 questions

Could slamming the door cause E14?

Hard closing might shift a loose switch, but the source simply calls it a loose latch switch. Close the door gently, and mention any rattling or a door that feels different when you call.

Is E14 serious?

The oven loses heat on the affected side, so cooking is affected. It is not described as a runaway or overheating code, but we still suggest an inspection before using the oven normally.

What will you check on a visit?

We check the latch for proper operation, as the document says, then test its switches and wiring. You get a written price before we replace or tighten anything.