How We Diagnose Compressor Failure in Georgetown
We test in sequence: (1) Capacitor load test, a bad capacitor mimics compressor failure exactly. (2) Contactor and voltage verification, confirm the compressor is actually receiving power. (3) Compressor winding resistance, check for open, short, or grounded windings. (4) Amp draw under load, compare to nameplate. Only after all four checks do we confirm compressor failure. This process has saved Georgetown homeowners from unnecessary $1,500-$2,800 compressor replacements dozens of times.
Compressor Failure Symptoms & Their Causes
Often a failed capacitor or contactor, the compressor is attempting to start but doesn't have the capacitance support. Not necessarily a failed compressor.
A compressor with a damaged valve or slug of liquid refrigerant, may indicate a locked rotor or liquid slugging condition.
Compressor drawing locked-rotor amperage, could be a seized compressor or a refrigerant charge problem. We test to distinguish.
If the fan runs and the compressor sounds like it's running, check refrigerant circuit before condemning the compressor.
Without a crankcase heater, refrigerant migrates into the compressor oil, a crankcase heater installation may prevent future failures.
Compressor Repair vs. Replacement Decision
Compressor replacement costs $1,400-$2,800+ including refrigerant recovery, line set flush, filter drier, evacuation, and recharge. For a system 10+ years old, this cost often approaches or exceeds half the cost of full system replacement. We'll give you the honest comparison:
- System is under 8 years old
- Uses R-410A (not R-22)
- Compressor has manufacturer warranty
- Rest of system is in good condition
- Repair cost < 40% of new system cost
- System is 12+ years old
- Uses R-22 refrigerant
- Other components are aging
- Compressor failed due to system issue (leak, overcharge)
- Repair cost > 50% of new system cost
Why Georgetown Summers Are Hard on Compressors
The compressor is the only moving part in the refrigerant circuit that has to work harder as the outdoor temperature climbs, and Georgetown's stretch of 95-plus degree afternoons from June through September puts more cumulative run hours on a compressor than most of the country sees in a year. Higher outdoor temperatures raise head pressure on the discharge side of the compressor, and a unit that runs at elevated head pressure for weeks at a time simply wears its internal bearings and valves faster than one cycling on and off in mild weather. This is also why a compressor that has quietly been running low on refrigerant, or fighting a partially clogged condenser coil, tends to fail during the hottest part of summer rather than in spring: the extra thermal and electrical stress finally exceeds what a marginal compressor can tolerate.
Homes in older Georgetown neighborhoods with systems installed before 2015 are more likely to still be running R-22 refrigerant, which is no longer manufactured for new equipment and costs significantly more per pound than current R-410A. If your compressor has failed and your system uses R-22, that cost difference is a real factor in the repair-versus-replace decision, and we walk through it honestly during the diagnosis rather than after we've already ordered a part.