A humming outdoor unit with a fan that will not turn is the call we get most in July in Terre Haute, IN, 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.
Signs You Need AC Repair in Terre Haute
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- Frost or ice forming on the copper lines or the indoor coil
- A hot electrical smell or a tripped breaker whenever the air conditioner kicks on
- The system short-cycling every few minutes without cooling the house
- Bubbling or hissing noises that point to a possible refrigerant leak
- Warm or room-temperature air blowing when the thermostat calls for cooling
- Higher summer bills even though the house still feels warm and humid
- A condenser fan that sits still while the outdoor unit hums
- Puddles near the air handler or water stains on the ceiling beneath it
Early Action Saves Money
Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. If you notice any of these signs, call (812) 203-4305 for a prompt inspection.
