A humming outdoor unit with a fan that will not turn is the call we get most in July in Glen Burnie, MD, 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.
When to Call for AC Repair in Glen Burnie
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- Hissing or bubbling sounds that suggest a refrigerant leak
- Ice on the refrigerant lines or a frozen indoor coil
- Breaker trips or a burning odor at startup
- Rapid on-off cycling that never brings the temperature down
- Clicking or humming outside with no fan movement
- Vents blowing air that is barely cooler than the room
- Rising electric costs paired with a sticky, uncomfortable house
- Puddles near the air handler or water stains on the ceiling beneath it
Early Action Saves Money
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. If you notice any of these signs, call (443) 293-9735 for a prompt inspection.
