This time around our problem centers on a split-system air conditioner. The condensing unit is 240-volt, single-phase, and the indoor air handler (which our customer is able to tell us is “blowing ...

In this troubleshooting situation a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system that employs an upflow gas furnace indoor air handler and a ...

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 ...