Thermador Refrigerator Error Codes Explained

Thermador refrigerators use diagnostic codes to communicate system issues. This guide covers the most common codes and what actions to take.

Accessing Error Codes

On most Thermador models:

Press and hold the alarm button for 5 seconds

The display will show any stored error codes

Press again to cycle through multiple codes

Common Error Codes

E01 - Refrigerator Sensor Error

Meaning: The refrigerator compartment temperature sensor has a problem.

Symptoms:

Inaccurate temperature reading

Cooling issues in refrigerator section

Action: Professional sensor replacement needed.

E02 - Freezer Sensor Error

Meaning: The freezer compartment temperature sensor is faulty.

Symptoms:

Freezer temperature incorrect

Frost buildup or temperature fluctuations

Action: Professional service required.

E03 - Evaporator Sensor Error

Meaning: Problem with the evaporator temperature sensor.

Impact: May affect defrost cycle and cooling efficiency.

Action: Professional diagnosis needed.

E04 - Ice Maker Sensor Error

Meaning: The ice maker temperature sensor is not functioning correctly.

Symptoms:

Ice production problems

Ice maker not cycling

Action: May require sensor replacement.

E05 - Communication Error

Meaning: Communication problem between control boards.

Possible causes:

Loose connection

Control board issue

Power surge damage

Action: Try resetting. If persistent, call for service.

E06 - Door Open Too Long

Meaning: A door has been open for an extended period.

Action: Close all doors and reset the alarm.

Resetting Alarms

To reset after addressing the issue:

Press the alarm reset button

Or press and hold for 3 seconds

If the error returns, the underlying issue needs attention.

When to Call for Service

Contact a Thermador-professional technician when:

Sensor errors appear

Communication errors persist

Temperature problems occur

You cannot clear the error