Thermador Refrigerator E07 Error: Freezer Evap Sensor Fault
thermador refrigerator e07 error indicates freezer evap sensor fault. Review the diagnostic steps below before calling a technician for help. What Does Thermador Refrigerator Error Code E07 Mean? The E07 error code on a Thermador Freedom Collection or T-series built-in refrigerator indicates the freezer evaporator temperature sensor has failed. On Thermador refrigerators that include an […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The freezer will continue operating temporarily after a manual defrost, but without a working evaporator sensor the defrost cycle cannot run correctly and frost will return. Move highly perishable frozen items to backup storage and schedule service.
Can I reset the code?
Yes. A 10-12 hour manual defrost followed by a breaker reset can clear E07 if the sensor was ice-jammed. If the sensor has electrically failed, E07 returns within 1-2 days as frost rebuilds on the evaporator.
When to stop immediately?
Stop if you notice: Heavy frost returns on the freezer rear wall within 24 hours of a complete manual defrost, Freezer temperature climbs above 10°F while the compressor is running.
Symptoms You May Notice
Ice sheet forming on the back wall of the freezer compartment
A thick layer of frost or solid ice is visible on the inside rear wall of the freezer section, indicating the freezer defrost cycle is not running because the evaporator sensor has failed.
Freezer door is becoming harder to open due to frost seal buildup
Frost is accumulating on the freezer door gasket and the door frame, making the door stiff or requiring extra force to open — a sign of ongoing defrost failure.
Freezer runs progressively warmer over several days
The freezer temperature gradually climbs over several days as frost blocks airflow from the evaporator into the compartment, even though the compressor is running continuously.
Possible Causes
Failed freezer evaporator NTC sensor
The temperature sensor mounted on the freezer evaporator coil has failed open or drifted out of calibration range, leaving the control with no data to determine when defrost is complete.
Requires ProfessionalSensor harness damaged by heavy frost accumulation
Multiple missed defrost cycles have allowed frost to build up heavily around the freezer evaporator, encasing the sensor harness and eventually cracking or disconnecting a wire.
Requires ProfessionalFailed defrost heater or thermostat alongside the sensor fault
In some cases E07 appears because the defrost heater or its safety thermostat failed first, allowing frost to overwhelm the sensor. The sensor may be physically intact but the defrost system needs full inspection.
Requires ProfessionalSafe Checks You Can Do
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1
Transfer frozen food to backup storage and perform a manual defrost
Move frozen items to a backup freezer or cooler with ice. Switch the breaker off for 10-12 hours with the freezer compartment door open and towels on the floor. The longer defrost time is needed because freezer evaporators accumulate more frost than refrigerator evaporators.
Thermador Freedom Collection refrigerators with bottom-freezer configurations have evaporator coils that can accumulate significant frost mass. Allow a full 10-12 hours to ensure complete thaw before restoring power.
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2
After manual defrost, watch the freezer temperature trend
Restore power after the full defrost. Over the next 24 hours, monitor the freezer temperature display. If temperature holds steady and no frost reappears on the rear wall, the defrost system is running. If heavy frost returns within 24-48 hours, the sensor has electrically failed.
On Thermador T-series refrigerators the defrost cycle runs automatically every 8-12 hours. Heavy frost on the rear wall reappearing within a day of a complete manual defrost confirms the automatic cycle is still not running.
When to Call a Professional
Contact a qualified technician if:
- Freezer evaporator sensor resistance is outside expected NTC range after a complete thaw
- Defrost heater or safety thermostat also tests faulty on the same service call
- Frost returns within 24 hours of a complete manual defrost confirming the defrost cycle is not running
Need Professional Help?
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