Visual Inspection

CHECKING FOR REFRIGERANT LEAKS
- Perform a visual inspection of all refrigeration pants fittings hoses and components for signs of A/C lubricant leakage damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow extra inspection time in these areas when using either an electronic refrigerant leak detector or fluorescent dye leak detector.
- If dye is observed confirm the leak with an electronic refrigerant leak detector. It is possible a prior leak was repaired and not properly cleaned.
- When searching for leaks do not stop when one leak is found but continue to check for additional leaks at all system components and connections.
- When searching for refrigerant leaks using an electronic leak detector move the probe along the suspected leak area at 25 to 50 mm (1 to 2 in) per second and no further than 1/4 inch from the component.

NOTE: Moving the electronic leak detector probe slower and closer to the suspected leak area will improve the chances of finding a leak.