Powerwise II issue

[Quickshippaul]

I recently noticed my neutral wire from my 110v power source had fried my relay inside my charger. My fault, noticed the connection was loose and didn't tighten it. So I ordered a new relay for 50.00. installed it and the charger still will not work. So I figured I fried the OBC that the relay is attached too, but before buying a 200.00 OBC I decided to bypass the relay. By doing so the charger works. It works when it is plugged into the cart. When I unplugged it from the cart it makes a different sound and drops down the 0 amps but doesn't shut off. My question is this. If I bypass the relay and the charger is working besides the automatic shutoff does this mean I got a bad relay or that my OBC is bad and needs replaced? If the OBC needs replaced I might as well buy a whole new charger.