Window AC units should be serviced at least once a year to make sure they are running correctly and efficiently. If your window AC is not working, it is likely that there is something wrong with the unit and it will need to be serviced. Call a technician to come out and take a look at the unit to determine what is wrong and how it can be fixed.

Window AC can last up to 10 years with proper service. However, there are a few things you can do to help increase the longevity of your window AC unit. First, always keep the filters clean. This will help keep the air flowing freely and allow the unit to run more efficiently. Second, be sure to have the unit serviced regularly by a professional. A annual service check will help uncover any potential problems and ensure that your window AC is running at its best. Finally, try not to overload the unit by putting too many appliances on it at once. This will cause it to work harder than necessary and could lead to premature failure.