LG Mini Split Error Code CH44: How to Fix It

Q: What causes LG mini split CH44 error code?

CH44 error occurs when the outdoor air temperature sensor becomes disconnected, damaged, or fails internally. Common causes include wire corrosion, moisture damage, sensor aging, or loose connections due to vibration.

Q: Can I run my LG mini split with CH44 error?

While the system may continue to operate with CH44 error, it won't function efficiently as it cannot properly read outdoor temperatures. This can lead to poor performance, higher energy bills, and potential system damage over time.

Q: How much does it cost to replace outdoor temperature sensor?

The temperature sensor typically costs $15-40 for the part. Professional repair usually ranges from $150-300 including labor. DIY replacement can save significant money if you're comfortable with basic electrical work.

Q: Where is the outdoor temperature sensor located on LG mini split?

The outdoor temperature sensor is usually mounted on the refrigerant suction line or inside the outdoor unit near the evaporator coil. It's a small thermistor with two wires, often protected by a plastic cover or mounting bracket.

Abstract

LG mini split error code CH44 indicates a problem with the outdoor air temperature sensor, which is either open (disconnected) or short-circuited. This sensor helps your system monitor outside temperatures to optimize cooling and heating performance.