2523 A/C 1-2 Coolant Pressure Fault. To ~~~~~ To check & rectify.        Check and found a/c 1-2 short cycling and low freon.Top up freon to LP=40psi/HP=100psi ok.Further check leakages for CCU and evaporator-no sign of leakage.Monitoring for 1 hours pressure steady.To be further monitor on M/L. Done by Sanip/Koh. 28/11/20