LG Refrigerator: not cooling or freezing

Professional Repair Guide

What is this symptom?

Is your LG refrigerator not cooling or freezing? This common issue can lead to warm air inside, affecting food safety. Troubleshoot potential causes like blocked airflow, dirty condenser coils, or faulty fans to restore optimal cooling performance.

Urgency: High

Important Tips for LG Models

  • LG fridges may use a damper control assembly to regulate cold air between freezer and refrigerator compartments; malfunction can cause fridge section not cooling.

Possible Causes

Faulty or blocked airflow (damper/air vents) between freezer and fridge

How to Identify: Freezer still cold but fridge compartment is warm; airflow vents blocked by items or malfunctioning damper

Part: Damper control assembly / air vents

Dirty or obstructed condenser coils

How to Identify: Back or bottom of fridge warm to touch; coils covered in dust/debris; compressor seems to run constantly without cooling

Part: Condenser coils and condenser fan

Evaporator or condenser fan failure

How to Identify: No airflow sound from fans; fridge not cooling while freezer may still be cold; fans not spinning when tested

Part: Evaporator fan motor, condenser fan motor

Incorrect temperature control settings

How to Identify: Temperature setting too warm on control panel; fridge above recommended 37°F/2.8°C or freezer above −18°C

Part: User temperature controls / thermostat

Compressor start components failure (start relay/capacitor)

How to Identify: Compressor struggles to start or runs intermittently; clicking noises; fridge doesn’t cool though freezer may be inconsistent

Part: Start relay, start capacitor

Low refrigerant or refrigerant leak

How to Identify: Both fridge and freezer not cooling; oil or chemical smell indicating potential leak

Part: Refrigerant system lines

DIY Solutions

Clean condenser coils

Moderate 30-60 minutes
Tools Needed: vacuum, coil brush
  1. Unplug refrigerator
  2. Locate and clean condenser coils with vacuum/coil brush
  3. Reassemble and restore power
⚠️ Safety First: Unplug unit before cleaning

Ensure proper temperature settings

Easy 5 minutes
  1. Check temperature controls and set fridge to ~37°F and freezer to ~0°F
  2. Wait several hours to observe changes

Unblock airflow vents and reorganize contents

Easy 10-15 minutes
  1. Remove items blocking cold air vents
  2. Ensure space for air circulation inside fridge
  3. Monitor cooling performance

Clean condenser fan and evaporator fan area

Moderate 30-60 minutes
Tools Needed: screwdriver, vacuum
  1. Unplug unit
  2. Access fan areas according to manual
  3. Clean debris and ensure fans spin freely
  4. Reassemble and power on
⚠️ Safety First: Avoid contact with electrical parts when plugged in

Next step

Choose the next step for not cooling or freezing

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

Check during diagnosis

Most relevant component to inspect

Refrigerator Damper Control Assembly

Regulates cold-air flow from the freezer into the refrigerator compartment.

Typical part-only price
$45 - $160
DIY difficulty
Medium
Estimated time
30-60 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.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Condenser Coil Assembly

Releases heat from the refrigerant circuit and must match the appliance's sealed-system design.

$80 - $400 · Hard · 120-240 mins

Check fit & price
Possible related component

Condenser Fan Motor

Moves air across the condenser and compressor compartment to remove heat.

$35 - $100 · Medium · 30-60 mins

Check fit & price
Possible related component

Thermostat

Regulates temperature by turning the heating or cooling system on or off.

$15 - $40 · Easy · 15-30 mins

Check fit & price
Model number required

Model-compatible Refrigerator parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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.

Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Refrigerator Condenser Coil Brush

For routine cleaning of accessible condenser areas where the manufacturer permits it. It does not repair a sealed-system or compressor fault.

View maintenance supply
Maintenance supply

Model-Compatible Refrigerator Water Filter

A routine replacement item on models with a water filter. Match the complete appliance model and existing filter number before ordering.

Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.

Find one that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Professional Repairs

Replace evaporator or condenser fan motors

Estimated Cost: $100 - $250

Service compressor start components

Estimated Cost: $80 - $180

Refrigerant leak repair and recharge

Estimated Cost: $200 - $500+

When to Call a Professional

No cooling after cleaning coils and checking airflow
Fans not operating or compressor not running
Suspected refrigerant leak (e.g., chemical/oil smell)
Error codes persist after basic checks

Preventive Maintenance

  • Clean condenser coils: Poor cooling efficiency due to dust buildup
    Frequency: every 6 months
  • Check door seals: Cold air leakage reducing cooling performance
    Frequency: annually

Frequently Asked Questions

Why is my LG Refrigerator not cooling or freezing?
Common causes include blocked airflow, dirty condenser coils, and fan failures.
How do I fix LG Refrigerator not cooling or freezing myself?
Clean coils, check temperature settings, and ensure airflow is unobstructed.
How much does it cost to fix not cooling or freezing?
Professional repairs can range from $80 to $500+, depending on the issue.
When should I call a technician for not cooling or freezing?
Call a technician if DIY fixes fail or if the problem seems complex.

References & Sources

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Dirty condenser coils
  • Faulty thermostat
  • Malfunctioning compressor

User Suggested Solutions

  1. Clean the condenser coils. Unplug the refrigerator, locate the coils (usually at the back or beneath), and use a vacuum or brush to remove dust and debris.

  2. Check and replace the thermostat if necessary. Locate the thermostat, test it with a multimeter, and replace it if it shows no continuity.

  3. Inspect the compressor. If it's not running, check the start relay and overload protector. If these parts are faulty, replace them or the compressor itself.

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

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

  1. LG Refrigerator/Freezer "Lost Power"

Community Discussions

lost power

Check for a blown fuse on the control board; replacing it may involve soldering.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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