My compressor will not turn or or engage when I turn on my A/C system. Why?
There are several reasons why the A/C compressor will not engage when you turn the A/C system on. To diagnose the problem, you have to start with a few basic checks of the system. Typically, the most common problem is that the system is low on refrigerant. The low refrigerant charge results in lower system pressures. Therefore, the safety switches built into the system have detected this, and have stopped the compressor from operating. It’s important to have these safety switches because leaving your A/C compressor to operate with a low charge could lead to catastrophic failure and result in costly repair. To best understand this, you must consider what’s happening in your A/C system when it’s operating normally. Under normal conditions, the refrigerant flowing through the system carries the oil that lubricates your A/C compressor. When the refrigerant charge is low, the proper oil is not being circulated. Continued operation of the compressor without proper lubrication will result in
