Has your central air conditioner suddenly stopped blowing cool air? That’s an inconvenience when summer arrives, a disaster when the dog days set in and temperatures soar, and during a heat wave, it ...

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?

Is your furnace blowing cold air? Here are some troubleshooting tips and simple DIY repairs for the most common causes for ...