How does a tech know the a/c compressor he or she is diagnosing is actually failed and that the problem is not a crankcase heater, condenser fan, or rubbed out wire? According to the contractors The ...

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 ...

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 ...

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 ...