You may have experienced the problem of blowing out hot air from your air conditioning unit. There may be some reasons why your air conditioning unit is not functioning properly. This issue can be a problem, especially during hot summers. Here is how you can get your AC Repair in Ontario and fix it to cool your room. Know why your AC is not cooling Dirty air filter A dry and unclean air filter is the most common reason why your window AC is not cooling your room efficiently. If the AC filter is filled with dust and dirt, several issues can arise. It would affect the working of the thermostat. The Ontario Heating and Air Conditioning Specialists can help you to remove dirt from the ducts of the air conditioning unit. This dirt could freeze the evaporator coil and block the passage of cool air. Solution: It is recommended to check the AC filter and clean it or change it if clogged. Incorrect thermostat setting You should check the AC thermostat if your split or window cooling is not