An outside unit that hums while the fan stays still is the call we get most in July in Taunton, MA, 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.
When to Call for AC Repair in Taunton
Recognizing the warning signs early can save you time and money. Keep an eye out for the following clues:
- Bubbling or hissing noises that point to a possible refrigerant leak
- Room-temperature air from the registers even though the AC is running
- Higher summer bills even though the house still feels warm and humid
- Frost or ice forming on the copper lines or the indoor coil
- Clicking or humming outside with no fan movement
- 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
- Water leaking around the indoor unit or from the ceiling below 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. Call (774) 533-7757 at the first sign of trouble.
