3622 A/C 1, 1621 A/C 2 , 3621 A/C 1 Cool ~~~~~ 3622 A/C 1, 1621 A/C 2, 3621 A/C 1 Coolant Pressure Fault. 1622 A/C 1, 2621 A/C 2 Inverter failure. (Train Prep)  3622 A/c 1-1 found Coolant Fault. LP = 75 psi, HP = 170 psi. Discharged freon to LP = 40 psi, HP = 125 psi. Functio check A/c cut-in/out operation - OK.    #1621 A/c 2 found Coolant Fault. Found LP = 10 psi, HP = 70 psi. Charged freon to LP = 40 psi, HP = 125 psi. #3621 A/c 1 found Coolant Fault. Checked LP = 5 psi, HP = 65 psi. Charged freon to LP = 40 psi, HP = 125 psi. #1622 A/c 1 & #2621 A/c 2 found Inverter Fault. Checked fault record & found Inverter failure happened once & cleared. Monitor for 2 hours & found no Inverter failure reoccurence.  Azmi/Izzul/Isam/Raja Faiz/Fudail 45057 For Further Checks.  3622 A/c 1-2, #1621 A/c 2-2 & #3621 A/c 1-1 vacuum & charged in freon. #3622 A/c 1-2 & #1621 A/c 2-2 HP = 200psi, LP = 0psi. Suspect evaporator choked. #3621 A/c 1-1 suspect evaporator leak due to freon pressure drop after charged & run. For #1622 A/c 1 & #2621 A/c 2 inverter failure, found no repeated inverter failure fault. Evaporator able to function normally. OPS 30 raised for #3622 1-2 & #1621 A/c 2-2 evaporator c/o. OPS 40 raised for #3621 A/c 1-1 evaporator check for leak.  Anand/Sugu/Kamarul 45058 3622 A/C 1-2  & 1621 2-2  - Evaporator C/O 3621 - A/C 1-1 (To check evaporator for leak) #3622 a/c 1-2 evap c/o done and function test ok. #1621 a/c 2-2 evap c/o ADDL. #3621 a/c 1-1 evaporator check no sign freon leak,CCU found heavy freon leaking and very obvious can see freon dripping down through the CCU pan. Not: 2489162 raise to HM follow up CCU c/o. Checked by Rizman/Koh/Sanip. 17/05/23 #1621 a/c 2-2 evaporator c/o done and function test ok.Old evaporator found drain pan crack and water leaking. Old: 331115 New: 535100 Not: 2490349 raise. Done by Sanip/Koh/Rizman. 20/05/23