An outside unit that hums while the fan stays still is the call we get most in July in Temple, TX, 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.
Heating trouble instead? See Furnace Repair.
Warning Signs for AC Repair
Catching these issues early helps you avoid costly problems. These are the signals our technicians see most often:
- Water dripping from the indoor unit or showing up on the ceiling below
- A hiss or gurgle from the lines, a common sign of leaking refrigerant
- Rising electric costs paired with a sticky, uncomfortable house
- Warm or room-temperature air blowing when the thermostat calls for cooling
- A hot electrical smell or a tripped breaker whenever the air conditioner kicks on
- Frost or ice forming on the copper lines or the indoor coil
- The outdoor unit humming or clicking but the fan not spinning
- The system short-cycling every few minutes without cooling the house
Don't Wait for a Total Failure
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. If you notice any of these signs, call (254) 218-1474 for a prompt inspection.
