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Error code · Oven

Dreefs-Control Thermador Oven E6 (CT/CMT): Control Board or Selector Switch Problem

E6 on older Thermador CT and CMT ovens with the Dreefs control carries two readings. The first table calls it a control board problem; a second page says selector switch and notes that individual cook modes…

Moderate · have it inspected
Code
E6
Appliance
Oven
Brand
Thermador
Warranty
30-day workmanship

What E6 means

E6 on older Thermador CT and CMT ovens with the Dreefs control carries two readings. The first table calls it a control board problem; a second page says selector switch and notes that individual cook modes in the affected oven stop working. Either way CLEAN is disabled in both ovens, and the message can be tweaked away for an immediate retry. We confirm on site which reading applies to your unit.

Usual causes of E6

  • Selector switch failing to report its position, per the second page
  • Control board problem, per the first table
  • Worn contacts or a loose connection between selector and board
✓ A safe check worth trying

1. Turn the selector knob to OFF. 2. Tweak it slightly counterclockwise until the flashing and beeping stop. 3. Turn it to the mode you want and see whether the oven responds. 4. If a mode will not start or E6 returns, stop trying other positions, switch off the oven's power and call us.

! Why you should stop here
  • Two possible parts means testing is cheaper than guessing
  • Forcing the knob can damage the switch and make the repair larger
  • Parts on legacy ovens are confirmed by model number, and we quote 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.
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E6E6 questions
Why does the source give two answers for E6?

One page words it as a control board problem and another as the selector switch. Both produce the same display, so a technician checks each before replacing anything.

Which cooking modes still work with E6?

The document says individual cook modes in the affected oven can be disabled, while CLEAN is disabled in both. Try the modes you need once after the reset, and tell us which ones fail.

Can I clear E6 myself for good?

You can tweak it away for a retry, but if the selector or board is worn it will likely return. A repeat means it is time to book an inspection.

Request service

Is E6 still showing?

Our technician checks it in your home and hands you a written price before touching anything.