Snap: 3557 air con is very low. ~~~~~ Snap: 3557 air con is very low. CE: 3557 found AC 1 short cycling. Suspect freon low  3557 FC 519 (A/c 1-2 HLPS). checked freon pressure LP = 5 psi, HP = 45 psi. Discharged/vacuum to -30 psi. Holding pressure at -30 psi - OK. Charged 6.8kg, LP = 40 psi, HP = 120 psi. No freon leak found at CCU unit. A/c 1-2 compressor motor current = 9.8 amp, condenser fan current = 1.3 amp. Saloon temp. 24*C - 25*C. Cut-in/out operation - OK. Monitor for 2 hours & no fault occurred.  Sarma/Kamarul/Tarmidzi/Hashim 45151