LG Air Conditioner Error 44
⚡ Quick Answer: The LG air conditioner error 44 signifies a communication failure between the indoor and outdoor units, often due to an outdoor temperature sensor fau... ✅ DIY Fixable
What Does Error 44 Mean?
The LG air conditioner error 44 signifies a communication failure between the indoor and outdoor units, often due to an outdoor temperature sensor fault, which may show as a blinking display or prevent the outdoor unit from starting. This error can manifest as the unit stopping operation and displaying CH44, indicating potential sensor disconnection or malfunction.
Common Symptoms:
- Unit stops running and displays CH44
- Indoor controller flashes CH44
- Outdoor unit may not start or respond
Possible Causes
- Outdoor temperature sensor disconnection or malfunction (medium)
- Outdoor defrost sensor error (low)
How to Fix Error 44
DIY Fix Basic checks and reset
- Turn off the air conditioner at the remote and circuit breaker.
- Wait ~5 minutes, then restore power to reset the system.
- Check that the outdoor unit is free of debris and visible damage.
Technician Only Inspect and replace outdoor sensor
- Disconnect power to the air conditioner completely.
- Access the outdoor unit and locate the temperature/defrost sensor.
- Check sensor wiring harness for open circuits or shorts with a multimeter.
- Replace the faulty sensor if readings are out of spec or if wiring is damaged.
- Test the unit after replacement to confirm error clears.
Parts needed: Outdoor temperature/defrost sensor, Sensor wiring harness connectors
- Error persists after reset and basic checks
- Visible wiring damage or inability to safely access outdoor unit
Next step
Choose the next step for 44
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
- Typical part-only price
- $20 - $120
- DIY difficulty
- Medium
- Estimated time
- 30-90 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.
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.
Model-compatible Air Conditioner 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.
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.
Air Conditioner Fin Cleaner
For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.
Model-Compatible Washable AC Filter
A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 1500W |
|---|---|
| component | Control Board |
| resistance | 5-15 ohms |
| part_number | LG 6711A20045B |
| voltage_rating | 220V AC |
Common Questions
What does 44 error mean on lg air conditioner?
Error 44 means there's a communication failure, often due to an outdoor temperature sensor issue.
Can I fix lg air conditioner 44 error myself?
Yes, you can perform basic checks, reset the unit, and ensure the outdoor unit is clear of debris.
How much does it cost to fix 44 error?
Repair costs typically range from $50 to $150 for parts and labor, depending on your region.
When should I call a technician for 44?
Call a technician if the error persists after a reset or if there's visible wiring damage.
Data last verified: 2026-07-26
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