Charging a refrigeration system is one of the most challenging and puzzling tasks a service technician will face. How much refrigerant a technician should put into a system when charging is a tough ...

A common failure found on many self-contained reach-in coolers and freezers is a low refrigerant charge due to a leak somewhere in the system. Locating the source of the leak and repairing it may be ...

Some owners of 2006-07 Chrysler Town & Country, Caravan or Voyager minivans with rear air-conditioning systems may complain that their a/c system doesn't get cool enough or blows warm air. One likely ...

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 ...