The compressor is the heart of any air conditioning or refrigeration system, so when it starts showing signs of not working correctly, technicians must act quickly in order to find out what is wrong.

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 ...

Having cut production last week to 30,000 barrels of oil per day because of gas compression problems, ExxonMobil last evening said that it has begun ramping up output and that a solution is at least ...