Hi everyone. I have a 1994, t4 cab chasis. Every mechanics nightmare, and no-one wants to work on them. Those that will, charge like a wounded bull. Just had the interior fan suddenly stop working after travelling on the rough notorious Olympic Highway from Wagga to Albury. Needing to fix it, but local mechanics wont touch the vehicle. I am mechanically minded, and have worked on many cars. But I dont have a workshop manual. I think it must be a wire that has come loose, have checked every fuse inside the cab, and all check out okay. Dropped the fuse box down, and found a couple of loose wires, dont know what they are??? Checked the switch, the multimeter, tells me it is fine. However, at this point I find that there is no 12 volt supply at the switch. Can anyone help me please. I do need air conditioning to be working living out west. Thanks David.