Snap:Warm aircon cabin 3557 ~~~~~ Snap: 3557 aircon cabin Warm. CE: Snap:3557 Both AC Running. Temp 25.4*C. Compressor Unit 1-1 And Coolant Pressure 1 Fault.  3557 A/c 1-1 freon pressure found at 0 psi. Charged freon to LP = 40 psi, HP = 120 psi. Function test A/c operation - OK. No freon leak found at CCU. OPS 20 raised for evap. unit leak check.  Au TK 45064 3557 AC-1 To perform evap freon leak check.