Get error message ch05 on my lg Artcool dual zone unit. Unit is only 4-5 years old. Two repairmen came in and it seems they either don't want to try and fix the problem (just replace for $5,000) or they just don't know how to fix the problem. In Chicago O'hare area. Who is a reliable HVAC that knows how to actually fix the problem?
Answers & Comments
Never reply