Troubleshooting an air conditioning system often concerns refrigerant, airflow, and mechanical problems, either individually or in combination. The next series of articles will deal with many of these ...

Key Takeaways Regular HVAC maintenance prevents costly repairs by addressing minor issues before they escalate into more ...

Worried about your HVAC unit? Uncover the signs that your dated unit is (or isn't) just blowing hot air and how to tell if it ...

Every homeowner at some point in time has asked this question: Is this just a tough time for my AC, or has it quietly given up on me? The signs can be frightening, no question-but not every scenario ...

When certain rooms in a home are consistently warmer or cooler than others, there may be an obvious cause, like an uninsulated exterior wall or drafty windows. But that's not always the case. If ...

Pay attention to furnace smells. A metallic or burning odor could mean overheated electrical components. A musty smell ...

R-410A has been the refrigerant of choice in residential and light commercial cooling systems since 2010, when federal government regulations mandated that new air conditioners and heat pumps could no ...

Regular maintenance is more important than you think. Use it to your advantage and save on HVAC costs in the long run. Alexandra Jones is a CNET contributor who writes about food, farming, gardening, ...