Hi guys, Fitted a new aircon control unit a couple of months ago from e-bay as I had the earlier style unit that only went from 18-26 degrees, this one goes from 16-28 degrees and have a couple of questions. 1. The button for the heated rear screen does not stay lit and heated screen not working, also noticed that I need to press it to activate the heated mirrors? Basically when I press it, it lights up for 2 secs and then goes out... 2. Yesterday the econ button was pressed accidentally by the wife and it will now not switch off. Any suggestions?