What Commercial AC Compressor Replacement Involves
A compressor replacement is not a swap and restart. The compressor is the sealed-system component responsible for pressurizing refrigerant and circulating it through the condenser and evaporator. When it fails, the root cause has to be identified and addressed before a new compressor goes in. Otherwise, the same issue damages the replacement.
Our process covers every step needed to get the job done right the first time:
Failure diagnosis: We confirm the compressor has failed and identify what caused it. Common causes include electrical failures, refrigerant loss, liquid slugging, contaminated oil, and long-term overheating from restricted airflow or dirty coils.
System evaluation: Before quoting a compressor, we assess the overall condition of the unit. If the system is near end of life or has other failing components, full unit replacement may be the better investment. We give you the numbers for both paths.
Compressor selection: Correct replacement means matching the compressor to the system specifications, not just the physical footprint. We verify capacity, refrigerant type, oil charge, and electrical compatibility before ordering.
Sealed-system work: The old compressor is removed, the system is flushed if contamination is present, the filter drier is replaced, and the new compressor is installed. We pull a deep vacuum and verify holding with a micron gauge before charging.
Refrigerant charge and verification: The system is charged to manufacturer specification. We record superheat, subcool, temperature split, and amp draw to confirm the new compressor is operating within rated parameters.
