Why Is My AC Not Blowing Cold Air?
When your AC blows air but it is not cold, the cooling side of the system usually needs attention. Here are the common reasons and quick checks.
Common Causes
- Thermostat set to fan on instead of cool
- Dirty air filter blocking airflow
- Low refrigerant from a leak
- Frozen evaporator coil
- Tripped breaker or a failing capacitor at the outdoor unit
What You Can Check Yourself
- Set the thermostat to cool and auto, not fan
- Replace a dirty filter
- Check your breaker panel and reset a tripped AC breaker one time
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 Not Blowing Cold Air?
An AC that is not blowing cold air is usually caused by a dirty filter, low refrigerant, a tripped breaker, a frozen coil, or a thermostat set to fan instead of cool. Check the filter and thermostat first, then call a technician if the air stays warm.
Why is my AC blowing air but it is not cold?
The blower is working but the cooling side is not. That points to low refrigerant, a frozen coil, or an outdoor unit that is not running, and it needs to be checked.
Can a dirty filter stop my AC from cooling?
Yes. A clogged filter chokes airflow, which can freeze the coil and stop cold air completely. Changing it every one to three months prevents this.
Need HVAC Help in Utah County?
Call (801) 362-5115 for same day and 24/7 emergency service, or request a free estimate.