[shaken'bake]

I have a 1995 mustang gt. Heres my problem. My fan is electric. Yesterday i wired up a fan switch. The switch worked for about an hour. I went straight from the fan motor to wire this switch. I used 18g 12v wire. I used no fuse (dumb). Well this switch stopped working, it burnt me, and the wires going to it started to get close to melting off. Well, my fan motor is shot. I ordered a new fan motor today which will be in tomorrow. Today i went ahead and wired up a new switch, using 12g wire , and an inline fuse. I cannot wire it up through the computer harness as is instructed on the paradise garage website. I have the positive pin from the fan running to the "ON" pin on the switch. I have the negative pin from the fan ran to the negative terminal on the battery. I ran a wire connected to the positive terminal on the battery to the "Power" on the switch. And i have a wired grounded to the chassis which goes to the ground on the switch. Am i wiring this up safely so i wont burn my new fan motor out within an hour, i dont keep it on constantly, only when the car temp gets right in the middle, then i turn it on until it drops around the "O" on Normal. Should i check to see how many volts the fan can handle and if it is different than the battery, is there a regulator of some sort that is available? So the simple question is, Have i wired this switch up right with my connections and an inline fuse which is connected to the power wire from the battery to the switch? Will I burn this motor up like the last one?

[gills99stang]

I would imagine that the fan runs on 12V DC like most everything in the car. Doesn't it have any specifications stamped or printed on the motor itself?

[fogged306]

how many amps at 12v dc is the switch rated at? you may need to run a relay to save the switch

the only thing i can think of is that with the smaller wire or a small switch the you burned up the other motor. when you said it was hot that means it was drawing too much current through the wire and/or switch. when that happens it is a downward spiral effect as far as voltae goes, when the wire is too small, it will get hot. when it gets hot it doesnt conduct as well and it gets hotter, and so on and so on.. the only reason I can think of that motor burning up is that it was not seeing enough voltage because of that.

if you dont know the rating on the switch I would just wire in a relay to be safe, that should eliminate your fears and it should run smoothly after that.