An outside unit that hums while the fan stays still is the call we get most in July in Whittier, CA, 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.
For winter breakdowns, see Furnace Repair.
Signs You Need AC Repair in Whittier
Spotting the early warning signs lets you act before the problem gets expensive. Watch for these telltale signs:
- Puddles near the air handler or water stains on the ceiling beneath it
- A condenser fan that sits still while the outdoor unit hums
- A hot electrical smell or a tripped breaker whenever the air conditioner kicks on
- Vents blowing air that is barely cooler than the room
- Higher summer bills even though the house still feels warm and humid
- Frost or ice forming on the copper lines or the indoor coil
- An AC that turns on and off every few minutes but never cools down the house
- Hissing or bubbling sounds that suggest a refrigerant leak
Early Action Saves Money
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. At the first hint of a problem, call (562) 267-0295 for a fast inspection.
