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 ...

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 ...

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 ...

With this information, the service technician can calculate the four values listed in the table above. Those calculations are as follows: Let’s apply the system checklist to a refrigeration system ...