AC Unit Running But Not Cooling House

Problem
Your air conditioner is running, but the house temperature is not dropping.

Possible Causes

  • Dirty air filter restricting airflow
  • Low refrigerant levels
  • Blocked outdoor condenser unit
  • Dirty evaporator coil
  • Incorrect thermostat setting

How To Fix It

  • Replace or clean the air filter
  • Check that the outdoor condenser unit is clear of debris
  • Make sure the thermostat is set to cooling mode
  • Clean visible dust around vents

When To Call A Professional

If the system runs continuously but never cools the house, the unit may have a refrigerant leak or compressor issue that requires a licensed HVAC technician.

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