Thermador Freezer TEMP-RISE Error: Freezer Temperature Rising
Thermador freezer TEMP-RISE error indicates freezer temperature rising. Stop using the appliance and call a Thermador-certified technician immediately for diagnosis. What Does the Thermador Freezer Temperature Rising Alarm Mean? The temperature rising alarm on a Thermador Freedom Collection freezer column warns that the freezer compartment temperature has been climbing above the setpoint for an extended […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. A freezer that cannot maintain temperature will allow frozen food to partially thaw, which is a food safety risk. Move frozen items to a backup unit and arrange service.
Can I reset the code?
Yes. The alarm clears automatically once the freezer returns to setpoint temperature. There is no separate reset action.
When to stop immediately?
Stop if you notice: Freezer temperature exceeds 20°F for more than 4 hours, Frozen food has visibly softened or thawed.
Symptoms You May Notice
Frozen food shows signs of thawing or refreezing
Ice cream is soft, frozen vegetables are clumped together, or you see ice crystals forming on previously dry frozen items.
Compressor runs but cavity does not stay cold
You can hear the compressor and condenser fan running but the freezer never reaches its setpoint.
Continuous chime or beeping from the user interface
A repetitive alarm sounds to alert you to the temperature problem.
Possible Causes
Door left open or not sealing
The freezer door has been left open during loading or the door gasket has degraded and is letting warm air in.
DIY PossibleFailed evaporator fan motor
The fan that circulates cold air through the freezer compartment has stopped, leaving the cavity warm even when the compressor runs.
Requires ProfessionalRefrigerant system underperforming
A slow refrigerant leak or compressor wear has reduced cooling capacity below what is needed.
Requires ProfessionalHeavy ice buildup on the evaporator coil
The defrost system has failed and ice has accumulated on the evaporator, blocking heat transfer.
Requires ProfessionalSafe Checks You Can Do
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1
Verify the door is sealing
Close the door and place a dollar bill so half is inside and half outside. Pull gently. If the bill slides out easily anywhere, the gasket is failing.
A bad gasket is a frequent cause of freezer temperature alarms. Replacing a gasket is a same-day repair on most Thermador columns.
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2
Listen for the evaporator fan inside the cavity
Open the freezer door briefly and listen for the fan running inside. The fan typically pauses when the door is open, so close it within a few seconds and listen again.
A silent evaporator fan during cooling is the second-most-common cause of freezer warming alarms.
When to Call a Professional
Contact a qualified technician if:
- Evaporator fan does not spin when cooling is called for
- Visible ice buildup on the evaporator coil
- Compressor runs continuously without ever cycling off
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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