Auto A/C

PART 1

Magnetic Clutch Inoperative (Part 1):

PART 2

Magnetic Clutch Inoperative (Part 2):

PART 3

Magnetic Clutch Inoperative (Part 3):

Magnetic clutch will not engage when high side pressure falls below 28 psi or rises above 384 psi.
The super heat switch (SHS) will prevent clutch engagement when refrigerant charge is insufficient.