#1660 AC 1-1 & @ 2-1 Coolant pressure fa ~~~~~ #1660 AC 1-1 & @ 2-1 Coolant pressure fault and 1660 A/C-1 TIMS shows 60deg To check and Rectify  1660 Aircvon 1-1 and 2-1 both unit low freon. Vacuum, Top up freon to LP:40/HP:120 and checked no sign of leakage at CCUs. Monitor for an hour ok. Pressure stable. Aircon able cut in/cut out are ok. 1660 MCU Changeout for TIMS show 60 Degrees after function check and TIMS ok. Aircon able to Cut in/Cut out ok. MCUs old:841773 new:842010 notif:2609200 Saini/Din/Morgan 45461