General Testing Instructions

• Follow the entire path of the refrigerant system.
• Completely circle each joint at 25-50 mm (1-2 in) per second.
• Hold the probe tip within 6 mm (0.25 in) of the surface.
• Do not block the air intake.

The audible tone changes from 1-2 clicks per second into a solid alarm if there is a leak. Adjust the balance control to maintain 1-2 clicks per second.

Test all of the following areas, even after 1 leak has been confirmed:

• Evaporator inlet and outlet
• Receiver-drier inlet and outlet
• Condenser inlet and outlet
• Brazed and welded areas
• Damaged areas
• Hose couplings
• Compressor rear head
• All fittings and joints