[Citroënbender]

I had an issue a bit like this with the clock light. The contacts were not making good on the tracks of the circuit board.

As it was a phenolic board the easiest repair was to build up the tracks with a thin layer of solder. The other approach is to build up the contact pads on the globe assembly. You need to be reasonably handy at soldering, have a fairly hot iron and cleaned substrate.