TC reported air-con fault. Unable to reset. Staff(BDL) checked and confirmed that front M2 car set # 1 air-con faulty. Reset - ok. Car was cooling. ~~~~~ 2540 TC reported air-con fault Unable to reset. Staff(BDL) confirmed 2540 A/C 1 faulty. Reset - ok. Car was cooling. CE Found 2540 A/C 1 no fault but A/C cut-out fast.    Temp.24.8c.  2540 A/c 1 CFOCR1 & CFOCR2 activated. Condenser fan 1 & 2 difficult to turn. OPS 20 raised to follow-up. #2540 A/c 1 isolated/tagged ACB1 & CPCB1.  Hanafi/Irwan 44922 2540 - TO REPLACE AC 1 BOTH CONDENSOR FAN.     2540 A/c 1-1 & 1-2 found condenser fan faulty. Replaced both with new spares. Security/function test - OK.  Farid/Koon PL/Haiqal/Zulfudhly/Amir 44922 #2540 A/c 1-1 : OLD : 1022-3543/008 NEW : 3040-3963/015 #2540 A/c 1-2 : OLD : 10196848/024 NEW : 45478349046/0229