Why Is My House Not Cooling Down?
A house that will not cool down on a hot Utah County day usually comes down to a few common issues. Here is what is likely going on and what you can check right now.
Common Causes
- Dirty or clogged air filter choking airflow
- Thermostat set to the wrong mode or a temperature the system cannot reach
- Low refrigerant from a leak, so the system runs but does not cool
- Frozen evaporator coil, often from low airflow or low refrigerant
- Dirty outdoor condenser that cannot release heat
What You Can Check Yourself
- Replace the air filter if it looks dirty
- Set the thermostat to cool and lower it a few degrees, and make sure it is not on fan only
- Clear leaves, grass, and debris from around the outdoor unit
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 House Not Cooling Down?
The usual causes are a dirty air filter, a thermostat set wrong, low refrigerant, a frozen evaporator coil, or a dirty outdoor unit. Start with the filter and thermostat. If the air still is not cold, you likely need a technician.
How long should it take to cool my house?
On a hot day a healthy system lowers the temperature about one degree every hour or two. If it runs all day and never reaches the setting, something is wrong.
Should I turn off my AC if it is not cooling?
Yes. If your AC runs but will not cool, turn it off to prevent a frozen coil or compressor damage, then call for service.
Need HVAC Help in Utah County?
Call (801) 362-5115 for same day and 24/7 emergency service, or request a free estimate.