Why Is My AC Blowing Warm Air? 7 Common Causes & Fixes

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If your AC is blowing warm air, one of these common issues might be the culprit:

  • Dirty Air Filter – Replace it monthly for optimal airflow.
  • Thermostat Settings – Make sure it’s on “cool” and set correctly.
  • Refrigerant Leak – Low levels require professional attention.
  • Blocked Condenser Coils – Clean debris around the outdoor unit.
  • Faulty Compressor – A major repair that might require replacement.
  • Electrical Issues – Breakers and wiring problems can disrupt cooling.
  • Ductwork Leaks – Conditioned air may be escaping before reaching rooms.

If these quick fixes don’t solve the issue, give our HVAC team a call for a professional diagnosis!

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A.J. LeBlanc Heating Inc

Address: 45 South River Road Bedford, NH 03110

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