Thermador Oven Error Code Err

The Err code on a Thermador oven indicates that the cooking mode and temperature you have set are not a valid combination. The oven's control system checks these two inputs against each other before allowing the oven to operate, and if they conflict, it displays Err and prevents the oven from starting. Adjusting the temperature or the cooking mode to a compatible pairing will clear the code.

The Err code is not a safety emergency. It is a control system safeguard that prevents the oven from operating with a mismatched mode and temperature setting. The oven simply will not start until a valid combination is entered, so there is no risk of unintended heating or damage while the code is active.

In most cases, the Err code requires no parts or repair cost because it is resolved by simply adjusting the mode and temperature settings. If a faulty temperature dial or control board is found to be causing the error, repair costs will vary depending on the specific component and labor rates in your area, but parts and professional service for these components typically range from a modest dial replacement cost up to several hundred dollars for a control board repair.

Start by checking the temperature dial and confirming it is set to a value within the acceptable range for your selected cooking mode. If the temperature appears correct, try switching to a different cooking mode or rotating the dial to a clearly defined position. If the error persists after adjusting the settings, try cycling power to the oven at the circuit breaker for a few minutes before restarting.

A power reset alone may not permanently clear the Err code if the mode and temperature settings remain in an invalid combination when power is restored. You need to set a valid mode and temperature pairing first. However, if the error was caused by a control board glitch, turning the oven off at the breaker for several minutes and restarting with correct settings may resolve it.