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 ...

Bob is a service technician who is well trained and nationally certified. However, he has sometimes suffered from the same confusion that all technicians occasionally do — the facts that he gathers ...

The heating and cooling system inside a home quietly controls comfort every single day, yet many households give it attention only after disaster strikes. A furnace stops on a bitter winter night, or ...

We've all been there, that "oh no" feeling when something major goes wrong in your home. When your air conditioning or heating unit goes on the fritz, who are you going to call? You might think an ...

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 ...