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

  1. Turn off the air conditioner at the remote and circuit breaker.
  2. Wait ~5 minutes, then restore power to reset the system.
  3. Check that the outdoor unit is free of debris and visible damage.

Technician Only Inspect and replace outdoor sensor

  1. Disconnect power to the air conditioner completely.
  2. Access the outdoor unit and locate the temperature/defrost sensor.
  3. Check sensor wiring harness for open circuits or shorts with a multimeter.
  4. Replace the faulty sensor if readings are out of spec or if wiring is damaged.
  5. Test the unit after replacement to confirm error clears.

Parts needed: Outdoor temperature/defrost sensor, Sensor wiring harness connectors

🛑 When to Call a Pro:
  • Error persists after reset and basic checks
  • Visible wiring damage or inability to safely access outdoor unit

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: 2026-01-10

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