DT Check, 3647 a/C 2-2, 1648 - A/C 1-1, ~~~~~ 3647 2-1 & 1648 1-1 evap leak check DT Check - 3647 A/C #2-2 & 1648 A/C #1-1 & 2-2 Coolant pressure fault.  3647 A/c 2-2 checked/found freon LP=10 psi & HP=40 psi. Vacuum/charged in 6.8kg of freonto LP=40 psi, HP=110 psi. Checked CCU no freon leak. A/c compressor resistance = 1.5 ohms Condenser fan resistance = 27 ohms A/c compressor running Amp = 10.4A Condenser Fan Amp = 1.2A OPS 20 raised to check evap. motor for freon leak. #1648 A/c 1-1 checked/found freon LP=5 psi, HP=20 psi. Vacuum/charged in 7kg of freonto LP=40 psi, HP=120 psi. Checked CCU no freon leak. A/c compressor resistance = 1.6 ohms Condenser fan resistance = 26 ohms A/c compressor running Amp = 9.7A Condenser Fan Amp = 1.2A OPS 20 raised to check evap. motor for freon leak. #1648 A/c 2-2 checked/found freon LP=10 psi, HP=200 psi. Vacuum/charged in 6.8kg of freon. Checked CCU no freon leak. Similar symptoms before vacuum. Suspect evaporator choked. OPS 20 raised to replace evaporator. A/c unit tagged Train saloon temp.= 23-24*C. A/c compressor resistance = 1.5 ohms Condenser fan resistance = 26 ohms A/c compressor running Amp = 8.9A Condenser Fan Amp = 1.3A  Sarma/Sugu/Anand 44972