Hi guys,
I'm wiring up some 12v lights in the back of my camper conversion. I've got a twin 12v switch with 3 prongs. I wired it up and have tested it today but when the switch is switched off, the postive wire gets very hot. I am just testing it at the moment so haven't connected the fuse box yet but it will defintely blow a fuse. I admit I dont fully understand the switch. The 3 terminals are for postive in, positive out, and earth. Why does the switch need to be earthed? When I remove the earth terminal from the switch the cables stop over heating? If anyone has any info that would be great!
Thanks a lot,
Tom