jmarzlak
+1y
ok about a week ago I noticed my compressor didn't turn on when I was below 140psi, I jumped the pressure switch by just connecting the power straight to the compressor and it the compressor worked fine. I woke up the next day, and just tried to plug up the pressure switch back up and when I turned on the truck the pressure switch kicked in a turned the compressor. Everything worked fine for the next couple days, tonight the compressor is not turning off when I turned the truck off (pressure switch is hooked to the ignition). Its a viair 480 and the non adjustable switch 140/200 psi. Anyone have a problem like this, should I get a new switch, or could this be the ignition or ground or something?
p.s. brandon I know you don't know how to answer this, and stu help if you can.