Refrigerant Pressure Sensor / Switch: Testing and Inspection

Inspection
1. Install the manifold gauge set.
2. Make sure the high-pressure side is in the ON range shown in the figure.







3. Disconnect the refrigerant pressure switch connector.
4. Verify that there is continuity between terminals A and B of the refrigerant pressure switch connector (male).
5. If there is no continuity, replace the refrigerant pressure switch.