AC is blowing warm air
What it usually means
Usually a thermostat setting, a clogged filter, a tripped breaker, or a part in the outdoor unit that has stopped working, such as a capacitor or contactor. Less often, low refrigerant from a leak.
Check these first
- Set the thermostat to Cool, the fan to Auto, and the temperature a few degrees below the room. A blank or dim screen usually means new batteries.
- Pull out the air filter. If it’s gray and clogged, replace it. A blocked filter can freeze the coil and stop cooling.
- Go outside while the system is calling for cool. Is the fan on top of the outdoor unit spinning? If not, check its breaker in your electrical panel and reset it once.
- Look for ice on the copper line at the outdoor unit. If you see any, switch the system Off and the fan to On to let it thaw. Don’t chip at the ice.
Call us if
- The breaker trips again after one reset
- The outdoor unit hums or clicks but the fan doesn’t spin
- Ice keeps coming back
- It still blows warm with a clean filter and the right settings
You’ll get a written price before any work starts.