What pressure should AC gauges read?
What pressure should AC gauges read? What are normal AC gauge pressures when the system is running? Generally speaking, you want around 27-psi on the low side and 200 on the high side. When to use high and low side A / C gauges? It can be used for recharging refrigerant, or to diagnose an a/c system based on pressure readings from your gauges. In conjunction with a set of high and low side gauges, this temperature and pressure relationship charge can be used to diagnose an a/c compressor that is not working. What should my AC pressure gauge reading...