I think your cooling fan circuit is wired in a non-standard way. It should not operate as you describe. I doubt installing a Fanzilla will "fix" this. Fanzilla is meant to operate on a Delorean that has NOT had this circuit modified. Pull the fan fail relay or whatever you have in there out. Stick a jumper in there a' la' fan fail bypass and test it. The fans should run ONLY when the key is on and when you jumper the otterstadt switch OR turn on a properly functioning A/C system. I am guessing you do not mean a 40 amp RELAY. Instead you mean circuit breaker? If your car is an eary vin you might need a wiring modifacation in the starter circuit. Look it up. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, Joe Angell <jangell@xxxx> wrote: > > It sounds like your relay is sticking. The circuit that starts the > > relay is activated with the ignition switch but the wire going to > > the relay to run the fans is "hot at all times". Get a heavy duty > > relay from John Hervey (40 amps). Both fans take a full 22 amps at