An outside unit that hums while the fan stays still is the call we get most in July in Shawnee, KS, 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.
When to Call for AC Repair in Shawnee
Spotting the early warning signs lets you act before the problem gets expensive. Watch for these telltale signs:
- Ice on the refrigerant lines or a frozen indoor coil
- Higher summer bills even though the house still feels warm and humid
- A burning smell or repeated breaker trips when the AC starts
- The system short-cycling every few minutes without cooling the house
- Puddles near the air handler or water stains on the ceiling beneath it
- The outdoor unit humming or clicking but the fan not spinning
- Vents blowing air that is barely cooler than the room
- Hissing or bubbling sounds that suggest a refrigerant leak
Early Action Saves Money
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. At the first hint of a problem, call (913) 452-5466 for a fast inspection.
