Many homeowners assume that HVAC maintenance and HVAC repair are interchangeable, but they serve very different purposes.

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

A good digital multimeter (DMM) is key to diagnosing compressor problems in general. For instance, in a previous article (May 15 issue of The NEWS) we discussed using the DMM to read suction and ...

Winter storms place exceptional stress on residential and commercial heating systems, often exposing weaknesses that remain ...

In an older house, the first system to fail is rarely the one you are watching most closely. The real tipping point is a mix of age, design, and how hard you push the equipment, which means HVAC, ...

When the mercury rises outside, nailing down why your AC is not cooling becomes a top priority. There are eight common reasons why this happens, including dirty filters, and some of which you can fix ...