Thermador Refrigerator Error E02

⚡ Quick Answer: The E02 error on Thermador refrigerators indicates a malfunction in the freezer temperature sensor or a communication issue between the user interface... ✅ DIY Fixable

What Does Error E02 Mean?

The E02 error on Thermador refrigerators indicates a malfunction in the freezer temperature sensor or a communication issue between the user interface and the main control board. This error often leads to inaccurate temperature readings and may cause the refrigerator to not respond correctly to temperature settings, resulting in overcooling or fluctuating temperatures.

Common Symptoms:

  • Display shows E02
  • Refrigerator may not respond correctly to temperature settings
  • Freezer may overcool or temperatures may be inaccurate

Possible Causes

  • Freezer sensor fault or communication issue (medium)
  • User interface to main control board communication failure (low)

How to Fix Error E02

DIY Fix Check basic connections and reset

  1. Unplug refrigerator or switch off breaker for 5 minutes and restore power.
  2. Check that all visible harnesses (especially UI/display harness) are firmly connected.
  3. Observe if E02 reappears after power reset.

Technician Only Diagnose and repair sensor/communication faults

  1. Use multimeter to test freezer sensors and wiring continuity.
  2. Inspect user interface board connections and main control board communication harness.
  3. Replace defective freezer temperature sensors and/or UI or main control board components if confirmed defective.

Parts needed: Freezer temperature sensor(s), User interface/display board, Main control board, Wiring harnesses

🛑 When to Call a Pro:
  • If error persists after basic power reset and connection checks
  • If you are not comfortable testing sensors or accessing internal components

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 5-10 kOhms at room temperature
part_number Thermador 00788537
voltage_rating 120V AC

Common Questions

What does E02 error mean on Thermador refrigerator?

E02 indicates a freezer temperature sensor malfunction or a communication issue with the control board.

Can I fix Thermador refrigerator E02 error myself?

Yes, you can check connections and perform a power reset to see if the error resolves.

How much does it cost to fix E02 error?

Repair costs range from $150 to $600+, depending on parts and labor.

When should I call a technician for E02?

Call a technician if the error persists after a reset or if you're uncomfortable with internal repairs.

Sources & References

Data last verified: 2026-03-25

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