Why Is Your AC Blowing Warm Air?
AC blowing warm air? Check out these common causes — from thermostat settings to refrigerant issues — and know when to call an HVAC p
Why Is Your AC Blowing Warm Air?
Nothing’s worse than turning on the AC during a hot day… only to feel warm air coming from your vents. If your air conditioner isn’t cooling properly, several issues could be to blame — some easy to fix, others requiring a professional.
Here are the most common reasons your AC is blowing warm air:
1. Incorrect Thermostat Settings
Double-check that your thermostat is set to “cool” and not just “fan.” It’s a simple mistake, but a common one.
2. Dirty Air Filter
A clogged air filter restricts airflow and can cause your system to overheat. Swap it out and see if things improve.
3. Refrigerant Leak
Low refrigerant levels mean your system can’t absorb heat from inside your home. This usually requires professional repair.
4. Tripped Breaker or Blown Fuse
Sometimes the outdoor unit loses power, causing the inside unit to run without cooling. Resetting a breaker may fix it — if not, it could signal an electrical issue.
5. Dirty Condenser Coils
The outdoor coils release heat from your home. If they’re covered in dirt or debris, your AC will struggle to cool effectively.
When to Call a Pro
If you've checked the basics and it’s still blowing warm air, it’s time to call in an HVAC technician. At HVA Climate Control, we serve Vancouver, WA, and the surrounding areas with same-day service to get your cool air flowing again.
