Incomplete 3 Systems woked on 2nd floor Carrier Straight A/C: HO stated system was not cooling. Found system completely out on ref. We spent over 25 mins calling old republic to get autho to perform a leak search, stayed iver the line, lady i was talking with was about to give us the autho code, when suddenly we got transfered to another lady. Then the other lady did not know why we got transfered to her, she transfered me to the autho dept and nobody answered. Jimmy said to perform a leak search. Added a few onces of 410A and nitrogen. Found leak at the evap coil. This is 3 ton Case Coil. System holds 8 lbs of 410A. Called east coast to get part info. P#: CHPF3636B6. Price: $287.32. In Stock. Did not order due to Old Republic having to approve.