The genset on my 1981 IG36 seems not to get preheated using the momentary press switch on the electrical switch panel located beside the helm. It does get heat if I use the switch at the genset. Switch or wiring, I`ll start at the switch first, it may need cleaning the connections, or a new one.
The panel includes 12v and 220/240 sections. There are screws all around the sides of the panel, do I just unscrew them to get access inside?
I do plan disconnecting the 240v power first.