Why is my window air conditioner running but not cooling the house?
Why is my window air conditioner running but not cooling the house?
The most common cause of window air conditioners not blowing cold air is a lack of adequate air flow. ... If the air filter is dirty or clogged, there may be little or no air flow over the evaporator coils, which may cause them to become too cold and frost or ice can form on them, restricting the air flow even more.
How do I fix my air conditioner that is not cooling?
- Check the thermostat.
- Replace a dirty filter.
- Clear a clogged condensation drain.
- Discern a duct malfunction.
- Clear the compressor area.
- Get serious with dirty coils.
- Know when to call the HVAC pro.