The summer heat is just around the corner, and that means HVAC troubles might not be far behind. Here are some quick tips on what you should do when your AC unit stops working. There are a number of ...

A variable frequency drive (VFD) fails to vary the discharge-air fan speed. A motor overheats and fails prematurely. Programmable controls that generally operate without issue suddenly experience ...

There are several HVAC issues that you can fix yourself. If your system isn’t working as expected, your first order of business should be checking your air filter and replacing it if necessary. If you ...

If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

Mark is a seasoned green industry veteran and freelance writer based in Georgia. His work encompasses all things garden, landscape, home improvement, and DIY, with a focus on sustainability. Mark ...

Like any appliance, air conditioners need a little TLC to deliver optimal performance. ACs that haven’t been kept in top-notch condition tend to struggle most. We asked air conditioner pros and ...

Learn what happens if you don't change HVAC filters. Degraded performance and system failure may occur if you don't change HVAC filters.