
Why Is My AC Running But Not Cooling the House? 10 Common Causes and What to Do Next
When summer heat hits, few things are more frustrating than hearing your air conditioner running but still feeling hot air, weak airflow, or no real cooling inside the house. You can hear the system turn on. The thermostat says it is cooling. The outdoor unit may be running. But the house still feels warm. If you are asking, “Why is my AC running but not cooling the house?”, the most common causes include a dirty air filter, low refrigerant, frozen evaporator coils, dirty condenser coils, thermostat problems, leaking ductwork, a failing capacitor, blocked airflow, an aging system, or an air conditioner



