TC feedback cab air con not working. ~~~~~ 3511 cab light not working due to ballast faulty. Replaced new ballast function test [ok]. 3512 cab A/C found low freon and use recovery machine recovery/vacuum/recharge freon 2kg. Check cab A/C underframe no sign of leaking. LP:60, Hp:240. Cab was able to achieve cooling. N.ALai.M.K //01.08.20. ---------------------