#1 in Lexington
Killman Heating & Air
Lexington, SC
(803) 359-5022
That's an HVAC contractor job — here are Lexington's top-rated pros, ranked by verified Google reviews.
See the full Lexington rankings →
Make sure the thermostat is set to ‘cool,’ the breaker hasn't tripped, and the air filter isn't clogged. If those are fine, call a pro — it's likely a refrigerant or electrical issue.
Many HVAC shops in Lexington offer same-day service when the system isn't keeping up. Call in the morning.
If the unit is over 10 years old and the repair is pricey, ask for a replacement quote too — a good shop will give you both.
If it's blowing warm air, shutting it off is usually kinder to the system. If it runs normally otherwise, low risk — but don't wait days in a heat wave.