TC reported air-con fault at car 1554 #01 set. Unable to reset. Staff (TAM) checked and confirmed th at car 1554 #01 set air-con faulty. Reset - ok. Car still co oling. ~~~~~ Suspects 1554 A/C 1 evaporator motor faulty. 3wc:To check and rectify. Replaced 1554 AC1 evaporator motor & raised notif. to RSW. Notif:2288646 Name                          : Zulqarnain Date of occurrence            : 05/06/2021 Last service date             :   EMU/Equipment/Location        : EMU554/EVAPORATOR UNIT #1/1554 Equipment Serial Nos.(if any) : NEW:032231 OLD:032319 Description of fault/cause    : 1554 AIRCON 1 EVAPORATOR UNIT CHOKE Measurement (if any)          :   Fault Found During            : PM TC reported air-con fault at car 1554 #0   Found that AC2 in 1553 had low freon. Freon was purged and topped up. No leakage was detected. Further checked, found that AC1 ventilation was not working. Swapped AC controller with 1554 AC2, fault did not transfer. Checked AC contactors, OK. Suspect evaporator motor faulty. OPN20 raised to check on evaporator motor. N.A KWOK/LEE KUM WAH/01.06.21