im haveing a problem with my flexalite fans. i have the reg. flexalite fans on a koyo rad. well the 2 ground wires were frying them selves. that happened twice and i up-graded the ground wire, connectors, and a new bolt. then the resistor running the fans went out, so i replaced that for 30 bucks at napa. now one of my power wires has fried itself... whats the deal with that? if there is some sort of better system to run it, i'd like to know!
thanks

 

Use a relay.

Fan ground to chasssis
Fan power supplied through relay from battery
Relay switched via keyed power or fan trigger

If you're still frying stuff then there is a problem with the fans themselves.

 

Not to second guess mike, but we would have similar problems to that so we started wiring ground strait to the battery... With these chasis being 15+ years old and the amounts of rust they tend to accumulate (specially in the radiator suppor) the metal itself may have high resistance from where you are grouding it to the batter, so just rule out any issue, and run the ground strait to the batter and run a good 30amp relay with keyed power from the batter, if your using the Felx-a-lite thermostatic controller, just throw it away, those like to go bad alot

 

most thanks for the help but i just spliced 2 30 amp fuses to each power wire and it seemed to fix the problem. but if one of the fuses goes out at least ill know witch fan it is that may be going bad...