Comments on: How do I hook up an electric radiator fan to a toggle switch that has 3 plugs one hot one load and one ground?

By: chevyraceman_383

chevyraceman_383 — Mon, 20 Jul 2009 02:55:50 +0000

Fan motor’s ground wire to battery neg (-)
Fan motor’s hot wire to load plug on switch
Battery pos (+) to switch hot plug
Chassis ground to switch ground plug

By: Geno

Geno — Sat, 18 Jul 2009 22:13:14 +0000

sussex electrics

It would be much safer and easier to hook up a ground wire from a toggle switch and activate the ground on the factory relay to turn it on. Cooling fans take quite a bit of power. It should be a fairly easy fix for a mechanic, seems you have already diagnosed the problem.

By: Firemedic

Firemedic — Sat, 18 Jul 2009 11:03:42 +0000

sussex electrician

Battery wire to the hot post, fan power wire to the load side, ground wire to the ground on the body, engine or battery.