Dear all,

We have one Lg Vrv sistem with wired remote controllers.
We have found error CH69 blinking on remote controller.

We try to investigate all available service manuals and we cant find any explanation of this error.

I try to open outdoor unit,and found everything in order,no connection failures,refrigerant is ok,no shorted or opened sensors.

After that without any reason,error message cleared by itself and unit works perfectly.
But unfortunately,the same error message appears from time to time.

Maybe somebody have experience with this problem?

Thank you very much.