My port bilge blower is tripping. I'm trying to figure out if the blower is pulling to much current (maybe corroded wire), or if the breaker is failing. Blower itself looks in good shape and sounds normal (loud). Do these circuit breakers "wear out"? The other interesting thing is once it trips, the blower switch on the dash goes from steady on to flashing. Must be some logic in there somewhere. Any advice? Hate to throw parts at it until I think I know whats going on.