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 ...

Vehicle air conditioning is typically one of a car's most durable systems. Though it is often in use every day, a modern air conditioning system just keeps humming along providing cool air when you ...

Since this column's inception, we've received a substantial number of questions concerning air-conditioning troubleshooting. Answering each one would take quite some time, but we will attempt to ...

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 ...