Heating and Air Conditioning March 2015 Technical Service This Service Information bulletin supersedes SI B64 03 14 dated March 2015. designates changes to this revision SUBJECT A/C Operation: Reduced or No Airflow After Long Drive. The customer complains of reduced air-conditioning air flow when driving for a long period, usually greater than 30 minutes. This time varies based on outside temperature and humidity. The A/C low-pressure lines and evaporator are starting to freeze up.
