What is the normal pressure for a car air conditioning gauge?
1 Answers
Car air conditioning normal pressure is: high pressure between 1.3-1.7MPa (13-17kg/cm2 or 190-250Lbf/in2); low pressure between 0.15-0.25MPa (1.5-2.5kg/cm2 or 20-35Lbf/in2). Below is extended information about car air conditioning pressure gauges: 1. Low low pressure, low high pressure: May be caused by insufficient refrigerant in the air conditioning system. 2. High low pressure, high high pressure: May indicate expansion valve failure. 3. High low pressure, low high pressure: May indicate compressor failure.