There is no reason to ever put gauges on an air conditioning or refrigeration system after the initial installation unless a problem with the mechanical refrigeration circuit is suspected. The ...

While using gauges to measure refrigerant pressure is the most reliable and conclusive way to thoroughly diagnose most problems in air conditioning, heat pumps, and refrigeration, it is not the only ...

When an HVAC tech performs a maintenance check on an air conditioner, they'll typically have a long list of stuff to go over. Perhaps the most important item on this list is checking refrigerant ...