Ideally, window AC units should be fully cleaned biannually. "You should deep clean a window AC unit twice a year," says Michael Rubino, president of All American Restoration, council-certified mold ...

While you can do some basic things to keep a central-air-conditioning system in good working order, we recommend you get a professional tune-up—with or without these financial incentives—each cooling ...

We may receive a commission on purchases made from links. Once you have chosen the right sized window AC for your space, you will need to keep it in good shape, and one of the most important ...