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 ...

Mini-splits promised to fix home comfort — but the boom created new headaches.

Some of the most common problems and solutions for smooth compressor operation can be found in training materials and on-the-job experience. There is also another method for educating HVAC contractors ...

Like any appliance, air conditioners need a little TLC to deliver optimal performance. And it’s the ACs that haven’t been kept in top-notch condition that tend to struggle most. You don’t need to lose ...

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 ...