TC reported air-con fault. Unable to reset. Staff(GCL) checked and confirmed that Rear M1 carset # 02 air-con faulty. Reset - ok. Car was cooling. ~~~~~ CHECKED 2537 AC1-2 FAULT NOT DUPLICATE.FURTHER CHECKED FOUND CCU FAN OVERHEATING DRAWING HIGH CURRENT .REPLACED WITH SPARE.FUNCTION CHECKED FREON LEVEL,LP/HP,CCU CURRENT OK.SIDE FINDING 1537 AC 2-2 HAVING COOLANT /COMPRESSOR FAULT.CHECKED FOUND SIGN OF LEAK AT CCU FIN.RAISED NOTIFICATION FOR CCU C/O. AKHBAR/SRIDHAR/IZWAN 25.03.2022 CCU FAN S/N NEW 45347221033/00290097  #2537 AC1-2 OLD10001898/010 #1537 NOTIFICATION 2367147 #2537 NOTIFICATION 2367150