TC reported air-con fault at Rear M1 car#2. Unable to reset. Staff(ALJ) checked and confirmed Rear M1 car #2 set air-con faulty. Reset ok. Car was cooling. ~~~~~ * ,N * From TIMS, 3543 A/C #1 FC 518 - HLPS operation. Slightly low freon at 3543 A/C #1-1. Topped-up freon to criteria. Check CCU - no leaks found. Checked and found 2543 A/C #2-2 having CFOCR2 operation. Found condenser fan emitting abnormal noise. Replaced new condenser fan and function test - A/C operation ok, freon level ok. Checked 1543 - both A/C running, no faults found. Freon level checked - ok, car was cooling. DONE BY:AZLI/LEE/SOLEHHIN 27.03.2024