Lg Refrigerator: fan not functioning, not cooling

Professional Repair Guide

What is this symptom?

Is your LG refrigerator not cooling properly because the fan isn't functioning? This issue can lead to warm temperatures inside the fridge, often caused by a faulty evaporator fan motor or accidentally activated demo mode. Understanding the problem can help you restore cooling efficiently.

Urgency: High

Important Tips for Lg Models

  • Certain LG models have demo/showroom or Sabbath modes that disable cooling and fan operation; consult manual for exit procedure

Possible Causes

Evaporator fan motor failure

How to Identify: No airflow from the freezer into fridge compartment, freezer may be cold but fridge warm, fan does not spin when door opened (if light switch bypassed

Part: Evaporator fan motor

Demo (showroom) mode / cooling mode disabled

How to Identify: Fridge powers on with lights/controls active but no cooling or fan operation; often seen after power surge or if demo mode was enabled

Part: Control settings (software)

DIY Solutions

Check and reset demo/Sabbath modes

Easy 5–10 minutes
  1. Consult your owner’s manual for button combination to exit demo or Sabbath mode
  2. Follow the sequence to ensure cooling mode is enabled
  3. Observe if fan starts and cooling resumes
⚠️ Safety First: Ensure correct sequence for your model to avoid setting changes

Inspect airflow vents and defrost if blocked

Moderate 30–120 minutes
Tools Needed: Hair dryer (if defrosting manually), Towels
  1. Remove food items from freezer
  2. Check for frost/ice blocking vents inside freezer
  3. Unplug refrigerator and allow defrosting (or use hair dryer carefully to melt ice)
  4. Once clear, restore power and check airflow
⚠️ Safety First: Avoid overheating components with hair dryer

Professional Repairs

Replace evaporator fan motor

Estimated Cost: $50 - $150 for part, $150 - $350 including labor

Replace condenser fan motor

Estimated Cost: $50 - $150 for part, $150 - $300 including labor

When to Call a Professional

If evaporator or condenser fan motors fail continuity tests
If internal fan assembly is inaccessible or you lack tools/experience
If cooling does not improve after checking airflow and settings

Preventive Maintenance

  • Clean condenser coils: Overheating and reduced cooling efficiency
    Frequency: every 6 months
  • Check and ensure vents inside freezer are not blocked: Airflow obstruction leading to cooling issues
    Frequency: monthly

Frequently Asked Questions

Why is my LG Refrigerator fan not functioning, not cooling?
Common causes include evaporator fan motor failure and demo mode being activated.
How do I fix LG Refrigerator fan not functioning, not cooling myself?
Check for demo mode and ensure cooling is enabled. Inspect airflow vents and defrost if blocked.
How much does it cost to fix fan not functioning, not cooling?
Replacing the evaporator fan motor costs $150 - $350, while condenser fan motor replacement ranges from $150 - $300.
When should I call a technician for fan not functioning, not cooling?
If DIY troubleshooting fails or you're uncomfortable performing repairs, it's best to call a technician.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

65%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Faulty evaporator fan motor
  • Blocked air vents or frost buildup
  • Defective thermostat or temperature control board

User Suggested Solutions

  1. Check and replace the evaporator fan motor if defective. Unplug the refrigerator, locate the fan in the freezer section, and test it for continuity with a multimeter. If it shows no continuity, replace it.

  2. Inspect and clear any blockages in the air vents. Remove any frost buildup by defrosting the freezer section. Ensure that air can circulate freely.

  3. Test the thermostat and control board for faults. Use a multimeter to check for proper readings. If they are not functioning correctly, replace them.

Analysis based on 1 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Refrigerator- fan broke

Community Discussions

fan broke, freezer not cooling, refrigerator not cooling

consider replacing the fan

Pro needed View on Reddit →

Source: Reddit r/appliancerepair

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