TC reported air-con fault. Unable to reset. Staff(NEW) checked and confirmed that front DT car set # 2 air-con faulty. Reset - ok. Car was cooling. ~~~~~ TC reported air-con fault. Unable to res     Check the above mention report due to freon low. Charged freon on both unit(2-1 & 2-2) LP=40psi & HP=120psi. Monitor for few hour a/c able to cut in/out and run as pernormal.No leakage found. Done by Saini/Haikel. 25/10/21