AC Not Turning On With Indoor Unit Working

Tools That May Help

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

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Problem

The indoor unit works but the outdoor AC unit does not turn on.

Common Symptoms

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

Possible Causes

  • Capacitor issue
  • Wiring problem
  • Control signal failure

How To Fix It

  • Check outdoor unit
  • Inspect wiring
  • Test capacitor

Safety Tip

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

When To Call A Professional

If outdoor unit does not engage

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