Our LG mini split heat pump is flashing ch 67. What is the problem, how do we fix it?

SOURCE: LG Ductless Mini Split System LAN125hv: Heat pump doesn't run.

CA: Compressor Discharge Sensor Fault

Contact a qualified service technician and have them replace this sensor.

R Subramaniyam Iyer

• 2133 Answers
• Posted on Dec 19, 2010

SOURCE: my LG split system Model

It's communication error between indoor and out door. Make sure you have command from indoor by checking volts in out put of indoor or in put of out door. If not, Check your PCB and also loose connections.

SOURCE: Mini Splits flashing "ch" then

CH61 means Condenser coil temp high due to non cleaning of condenser/over charged gas/non condensable gas.

Clean your condenser coil. If still problem rests, due to non condensable gas also there will be high temp. Once remove the gas, flush out the system and vacumize and then do gas charging.

George Persico

• 231 Answers
• Posted on Dec 22, 2017

SOURCE: Our LG heat pump flashes ch 67. What's the cause and how do we fix it please? When you pay $5,000 for a unit you would expect it to work for more than 2 months. Thank you.

This is a warranty issue. Go back to whoever installed it.