Liebherr Refrigerator Error 1

⚡ Quick Answer: The Liebherr refrigerator error 1 indicates a malfunction in the temperature sensor, leading to fluctuating temperatures and inconsistent cooling in t... ✅ DIY Fixable

What Does Error 1 Mean?

The Liebherr refrigerator error 1 indicates a malfunction in the temperature sensor, leading to fluctuating temperatures and inconsistent cooling in the refrigerator compartment. This issue often persists despite the unit running and can be attributed to a faulty temperature sensor that may require inspection or replacement.

Common Symptoms:

  • Temperature in the refrigerator compartment fluctuating or incorrect
  • Refrigerator not maintaining set temperature despite running
  • Error persists even after basic airflow and load checks

Possible Causes

  • Refrigerator compartment temperature sensor failure (medium)

How to Fix Error 1

DIY Fix Basic checks and reset

  1. Ensure the refrigerator door is fully closed and the seal is intact.
  2. Check that food items are not blocking airflow around the temperature sensor area.
  3. Unplug the refrigerator for approximately 5–10 minutes to perform a power reset.
  4. Plug the refrigerator back in and observe if the error clears.

Technician Only Inspect and replace temperature sensor

  1. Diagnose the refrigerator compartment temperature sensor using a multimeter or diagnostic tool.
  2. Check wiring harness and connector integrity for damage or loose connections.
  3. Replace the temperature sensor if faulty and calibrate as required per Liebherr service procedures.
  4. Verify proper operation and confirm error code no longer appears.

Parts needed: Refrigerator compartment temperature sensor, Wiring harness/connectors if needed

🛑 When to Call a Pro:
  • If the error persists after a power reset and basic airflow checks.
  • If replacement of the temperature sensor or inspection of wiring is beyond your expertise.
  • If additional error codes accompany the primary fault, indicating a broader system issue.

Next step

Choose the next step for 1

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 5-10 kOhms at 25°C
part_number Liebherr 7445790
voltage_rating 12V DC

Common Questions

What does 1 error mean on Liebherr refrigerator?

Error 1 indicates a temperature sensor malfunction, causing erratic temperatures.

Can I fix Liebherr refrigerator 1 error myself?

Yes, you can try basic checks, like ensuring the door seals properly and resetting the power.

How much does it cost to fix 1 error?

Estimated repair costs range from ¥8,000 to ¥25,000, depending on parts and labor.

When should I call a technician for 1?

Call a technician if the error persists after a reset or if you're not comfortable replacing the sensor.

Data last verified: 2026-04-23

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