E11
Thermador
Dual-Zone Temperature Imbalance / Zone Sensor Fault
E11 appears; dual-zone wine cooler shows one zone at incorrect temperature while the other seems normal.
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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
Failed upper zone temperature sensor, Failed lower zone temperature sensor, Wiring harness issue between zones and control board, Faulty dual-zone main control board
How to Fix / Troubleshooting
Safety: Disconnect power before removing interior panels or accessing the control board.
Steps:
- Identify affected zone: Compare displayed temperatures to actual bottle temperature using a separate thermometer in each zone.
- Access zone sensors: Remove shelves and interior trim in the affected zone to locate the zone-specific temperature sensor (often mounted on the liner wall or near the evaporator outlet).
- Inspect and test: Check sensor wiring for damage. Measure resistance and compare to Thermador’s NTC chart. Replace the faulty sensor.
- Harness check: Trace the harness from the sensor to the control board. Repair any pinched or broken wires and reseat connectors.
- Control board: If both sensors test correctly and wiring is intact, the dual-zone control board may be misreading one zone and should be replaced.
After repair: Allow several hours for both zones to stabilize and verify that E11 does not return.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone Temperature Sensor
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