I have a dual-zone system with two Bryant 561CJ030-E outside condensers. I recently had them moved approximately 20 ft. for landscaping. The electrical and lines were not moved, just extended from where they originally entered the house. Since the move....no cooling!
The technician who moved them is stumped as to the problem. His guages show that both units are properly charged, or at least under proper pressure. When either system is turned on, the larger cooper tube (approx.3/4")becomes "white" with frost, but no cooling in the house. The attic unit goes on and the fan blows, but air is only room temperature.
When the units were moved, the coolant was pumped into the condenser tanks, then the lines were cut and extensions were spliced and brazed. To my knowledge, the lines were not evacuated, but I am told very few technicians go to that effort, and I have no idea if air in the lines could be causing this problem?
It is the same with either zone and either unit. All was well before they were moved. Any ideas as to the prolem that I could pass on to my HVAC guy would be appreciated.