Black Phase 2 dturbo. (4waydiablos old car)

[PUGNUT_XS]

Have you tried replacing the variable resistor?. to get to it remove the scuttle panel on the rhf as if you were standing infront of the car, Mine is non AC but if its AC remove the pollen filter and you should be able to see it. Non AC there is a vent.

Hope this is of some help.

I have the same problem with the rear demister too.

PS The dash is a MOFO to get out