Pax feedback to staff(YIS) that car 3703was warm. TC confirmed no fault found. Staff(YCK) checked a nd confirmed that car 3703 set #1 air-con faulty. Unable to reset. Car was warm. ~~~~~ 3703 Pax feedback to staff(YIS) car was warm. TC confirmed no fault found. Staff(YCK) checked and confirmed that 3703 A/C 1 faulty Unable to reset. Car was warm.  Checked 3703 AC 1-1 & 1-2 system pressure slightly high. Cleaned condenser filter & fin. Bth AC unit cooling operation -OK. System pressure OK.Saloon temp 24 deg .C. Hanafi/ Chan SW 44566