Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Cassidy was an updates editor whose main responsibility is to write and edit ...

It's always in the middle of a heatwave. Your AC hums to life, but instead of the icy rush you're craving, it pushes out a faint, lukewarm breeze. That's when the dread sets in. Is the unit failing?

Efficiently clean and maintain your AC for optimal summer performance. DIY steps cover filter and coil cleaning, fin straightening, and drainage line clearing to prevent costly repairs and ensure ...