E1
Thermador
Control Board Configuration or Internal Memory Error
Oven displays E1 and may not respond to temperature or mode selections.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Corrupted control board firmware, Incorrect configuration jumpers or programming, Failed electronic oven control (EOC), Power surge damage
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before accessing internal components.
- Power cycle: Shut off power for 10 minutes to fully discharge the control. Restore power and see if the error clears.
- Check model configuration: Remove the control panel and inspect the EOC for configuration jumpers or DIP switches. Verify they match the oven model per the service label (usually behind the door or on the frame).
- Inspect for damage: Look for burn marks, swollen components, or corrosion on the control board. If present, the board must be replaced.
- Surge protection: If the error followed a power outage or surge, consider installing a surge protector for the appliance circuit after repair.
- If unresolved: Replace the electronic oven control (EOC) with the exact Thermador part number for your model.
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Repair Difficulty
Hard
4/5
Required Part
Electronic Oven Control (EOC) Board
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