Fluorescent Dye Leak Detection (G179002)

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Procedure

WARNING: Eye protection glasses supplied with the ultraviolet (UV) lamp should be used to protect eyesight from harm.

NOTE: The air conditioning (A/C) system has an R-134a leak trace dye wafer incorporated into the desiccant bag. The exact location of leaks can be pinpointed by the bright yellow/green glow of the tracer dye. Since more than one leak may exist, always inspect each component. If it is necessary to add dye (due to a severe leakage for example) use proprietary tracer dye injection equipment.

Check for leaks using ultraviolet (UV) lamp.
Check all components, fittings and lines of the A/C system.
Carry out the repair. For additional information, refer to appropriate Air Conditioning service information.
After the leak is repaired, remove any traces of leak trace dye with a general purpose oil solvent.
Check the A/C system for correct operation.
Verify the repair by operating the system for a short time and inspecting with the (UV) lamp.