The pressure switch is a dual pressure switch.
Here is instructions to test it. Posting diagrams below.
PRESSURE SWITCH CHECK
1. Remove the dual pressure switch connector and connect the high/low pressure side terminals located on the harness side as shown in the illustration.
2. Install a gauge manifold to the high-pressure side service valve of the refrigerant line.
See image one
3. When The high/low pressure sides of the dual pressure switch are at operation pressure (ON ) and there is continuity between the respective terminals, then the condition is normal. If there is no continuity, replace the switch.
Second diagram is the spec.
Third diagram is location of switch.
Fourth and fifth are the electrical wiring schematic. Looks like there is a separate controller that controls the cycling switch as well.
Image six is the location of the controller.
Let me know if the images are clear or not. If not you can give me a fax number by sending me a private message and will fax you the diagrams. But looks like the automatic compressor control could be the problem if the switch is good.
Images (Click to enlarge)
Thursday, July 31st, 2014 AT 6:19 PM