Why Is My AC Blowing Warm Air?

Tools That May Help

Before calling a professional, these common tools may help you check the issue safely.

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Problem

Your AC is running, but warm air is coming from the vents instead of cold air.

Common Symptoms

  • Weak airflow from vents
  • System running constantly
  • Uneven indoor temperatures
  • Higher energy bills

Possible Causes

  • Thermostat set incorrectly
  • Low refrigerant
  • Dirty coils
  • Outdoor unit issue

How To Fix It

  • Check thermostat mode
  • Replace filter
  • Clean outdoor unit
  • Inspect for ice buildup

Safety Tip

Always shut off power to the HVAC system before inspecting wiring or internal components.

When To Call A Professional

If the air stays warm after basic troubleshooting

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