Thermador Range E6 Error: Over Temperature in Cook Mode
Thermador range E6 error indicates over temperature in cook mode. Stop using the appliance and call a Thermador-certified technician immediately for diagnosis. What Does Thermador Range Error Code E6 Mean? The E6 error code on a Thermador Pro Grand, Pro Harmony, or Professional Series range indicates an over-temperature condition during a normal cook cycle. The […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. An over-temperature condition in cook mode is a serious safety issue. Disconnect power at the breaker and do not use the oven until a technician has confirmed the cause and replaced the failed component.
Can I reset the code?
No. A welded relay or failed sensor is a hardware fault. Resetting the breaker will not undo the welded contacts and the runaway condition will return as soon as the oven is energized.
When to stop immediately?
Stop if you notice: Cavity temperature exceeds the setpoint by 75°F or more, Heating elements remain glowing red after the cycle is cancelled.
Symptoms You May Notice
Food burns on the outside while staying raw inside
Cookies, breads, and pastries scorch on top within minutes of being placed in the oven.
Range produces excessive radiant heat into the kitchen
The cavity exterior, the control panel, and the kitchen feel noticeably hotter than usual during oven use.
Bake or broil element stays glowing red after the cycle ends
After cancelling the cook program, the heating elements remain visibly hot for an unusually long time.
Possible Causes
Welded relay contacts on the control board
A relay that switches power to the bake or broil element has fused closed, leaving the element permanently energized.
Requires ProfessionalFailed RTD sensor reading low
The temperature sensor is reporting a falsely low cavity temperature, so the control keeps adding heat trying to reach the setpoint.
Requires ProfessionalCooling fan failure
The cooling fan that circulates air around the cavity walls has stopped, allowing internal temperatures to climb above safe limits.
Requires ProfessionalSafe Checks You Can Do
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1
Cut power immediately at the breaker
Switch off the dedicated 240-volt circuit at the panel right away. Do not just cancel the cycle from the control panel — that may not interrupt power to a welded relay.
A runaway oven is a fire hazard. The breaker is the only guaranteed disconnect.
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2
Allow full cool-down before further investigation
Leave the breaker off for at least two hours. Open the oven door and let the cavity return to room temperature.
The control board itself can be damaged by sustained high cavity temperatures, so let everything cool fully before calling for service.
When to Call a Professional
Contact a qualified technician if:
- Element continues to draw current with the relay commanded off
- Sensor reading on the multimeter does not match the cavity thermometer
- Cooling fan is not spinning during oven operation
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