Had nothing but trouble with my neons, first the neon pad corroded off, then the transformer to increase the voltage went gammy,
thought if anyone had the same problem heres a fix for the control unit, basically it looks like a black relay on the circuit board but its a bunch of other components including a transformer inside, i got a scalpel to the top of the casing and cut it off, it seems all the components are connected together on this circuit board, i redid all the points shown in the picture, sealed back up the unit and now there 100%