wiring relay/ blown fuse question

Edited: 4/28/2005 5:56:34 PM by reefdood

I have a kinda simple question but it's got me stumped.

I have a viair 450 wired up using a 30a relay, psi switch, and toggle switch. I've rewired everything but I keep intermittently blowing the 30a fuse on the wire from battery to relay. I checked my rewiring and it isn't shorting or grounding anywhere on my wiring. So is it probably a problem with my toggle? It only blows sometimes when I toggle off or the psi switch cuts off.

Would a toggle switch contact that MAY BE, possibly touching ground cause the fuse to blow on the 12v to relay wire, and only when switching off? I have the wire going from battery to toggle fused and that one never blows. I'm ripping my hair out trying to figure this out and I refuse to run all new wire another time.