You’ll pay between $100 and $200 for a window AC recharge depending on whether it uses R-22, R-410A or another refrigerant. The next largest system up from a window unit is the AC mini-split .

Identifying why your window AC isn't blowing cold air is the first step in restoring comfort to your living space.

A window air conditioner plugs into a receptacle, so if the unit isn’t getting power, check the breaker. “The most common cause of an air conditioner not turning on is a tripped circuit ...

Before writing your current AC window unit off completely, do some detective work to figure out if it's actually broken, or there's something else going on. 1. It's a power issue.

Clean your window AC unit about every 60 days if it's in continuous use. If the unit doesn't serve as your heater, store it in the off season so dirt doesn't accumulate.

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Materials used to vent a portable AC unit in a casement or crank window. Last ...

Plus, a too-big AC unit is louder and burns more electricity than a properly sized unit. Window-mounted AC units come in various sizes and cooling capacities, ranging from about 5,000 to 25,000 ...

Consumer Reports explains step by step how to install a window air conditioner. A faulty installation can damage your AC, or worse, it can fall out of the window.