Why Is My AC Blowing Warm Air?
Warm air from the vents when the AC is on is a common Utah County summer complaint. Here is what usually causes it and how to narrow it down.
Common Causes
- Thermostat set to heat or fan by mistake
- Outdoor condenser not running due to a tripped breaker or failed capacitor
- Low refrigerant from a leak
- Dirty filter or frozen coil blocking cold air
- Leaking or disconnected ductwork pulling in warm air
What You Can Check Yourself
- Double check the thermostat is set to cool
- Reset the AC breaker one time
- Replace a dirty filter and make sure vents are open
When to Call Air Plus Heating
If the quick checks above do not solve it, the problem needs a trained technician. Air Plus Heating has served Utah County since 1982 with honest pricing, free estimates, and same day and 24/7 emergency service. Learn more about our AC repair in Utah County, or see all of our HVAC troubleshooting guides.
Related Questions
Why Is My AC Blowing Warm Air?
Warm air from your AC usually means the outdoor unit is not running, the system is low on refrigerant, the thermostat is set wrong, or a breaker has tripped. Confirm the thermostat is on cool, check the breaker, and if the air stays warm, call for service.
Why did my AC suddenly start blowing warm air?
A sudden change usually means a tripped breaker, a failed capacitor, or a refrigerant leak that finally ran the system dry. These need a technician.
Is warm air from my AC an emergency?
It is not dangerous, but running a failing system can cause more damage. Turn it off and schedule same day service, which we offer across Utah County.
Need HVAC Help in Utah County?
Call (801) 362-5115 for same day and 24/7 emergency service, or request a free estimate.