Guys,
Recently I have some foul sourish smell from the air-con, the smell used to be quite frequently then drive back to agent, they did some flushing and the smell went off for a while.
Recently, the smell comes back and now it happens occasionally. Anyone got any solution and I heard by hanging the dehumidifier like thirsty hippo type will help to reduce the moisture in the air-con system so that the mould and fungi will not grow in the air-con, is that true?
Anyone care to advise?