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 ...

Here is a question to ponder: What should the amperage draw be of a compressor in which the nameplate says the RLA (rated load amperage) is 59.6, but the compressor is only pulling 45 amps? Is there a ...

Your air conditioning can feel fine one day and then blow warm air the next, with no warning. When that happens, the AC compressor often sits at the center of the failure, because it carries the ...