3503 (SNAPREP) CE reported A/C comp unit ~~~~~ 3503 (S PREP) CE reported A/C comp unit 1-2-Fault (28').  3503 A/c 1-2 charged in 1 kg of 407C freon. Tightened suction connector & function check - OK. Saloon temp. 24'C.  Chan SW. 24/01/2020.