A humming outdoor unit with a fan that will not turn is the classic summer service call in Mooresville, NC, and the cause is usually a failed run capacitor. That inexpensive component starts the compressor and fan, fades for years without complaint, and then quits under peak load. It is far from the only suspect, though. Contactors pit and stop passing clean power, condenser fan bearings dry out, small refrigerant leaks drain away cooling capacity, and evaporator coils ice over when a clogged filter strangles airflow.
When the heat goes out, see Furnace Repair.
Warning Signs for AC Repair
Recognizing the warning signs early can save you time and money. These are the signals our technicians see most often:
- Water leaking around the indoor unit or from the ceiling below it
- Ice on the refrigerant lines or a frozen indoor coil
- The outdoor unit humming or clicking but the fan not spinning
- Cooling bills climbing while the house stays sticky and warm
- Breaker trips or a burning odor at startup
- Vents blowing air that is barely cooler than the room
- Hissing or bubbling sounds that suggest a refrigerant leak
- The system short-cycling every few minutes without cooling the house
Act Before It Gets Worse
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. Call (980) 206-5356 at the first sign of trouble.
