Hi,new to the forum and looking to see if anybody can help with my problem. Recently the heater control panel on my Doblo Van stopped working, no heater fan working. I stripped dash down to get access to heater control unit to make sure something like the multi plug hadn't separated but all connected. I bought a replacement unit to test as the control unit has a circuit board and connected the replacement. Still no control. The panel lights on left side illuminate but only if I give it a tap so will assume maybe the Bulb is a but temperamental. Is anyone able to give any advise or support... currently I'm using a cheap as chips 12v fan to give a bit of warmth in these chilly days. Any fuses that I should maybe look at? Thanks in anticipation. Tony.