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To prevent false diagnosis, thoroughly clean any residual dye from the service port with a Halogen Leak Detector Ensure that the vehicle has at least 0.45 kg (1 lb) of refrigerant in the A/C refrigeration system in Clean and dry all surfaces in order to prevent a false warning. Liquids will damage the detector. Follow the instructions supplied with the J 39400-A . AIR CONDITIONING (A/C) SYSTEM PERFORMANCE TEST This test measures the operating efficiency of the A/C system under the following conditions: The current ambient air temperature The current relative humidity The high side pressure of the A/C system The low side pressure of the A/C system The temperature of the air being discharged into the passenger compartment Test Description 7.39 ml (0.25 oz.) charge. CAUTION: Do not operate the detector in a combustible atmosphere since its sensor operates at high temperatures or personal IMPORTANT: Halogen leak detectors are sensitive to the following items: Windshield washing solutions Many solvents and cleaners Some adhesives used in the vehicle IMPORTANT: Follow a continuous path in order to ensure that you will not miss any possible leaks. Test all areas of the system for leaks.
2007 Hummer H3 2007 HVAC Heating, Ventilation and Air Conditioning - H3
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