To wire an exhaust fan and light fixture to a single switch you have to find a way of connecting the fan and light. A good source close to the switch is the cigarette.
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How to wire electric fans to a switch. Locate a 12 volt power source by using the multimeter. Locate a convenient pace to mount the switch. Connect black wires together. You can do this in the switch box or by running a length of wire through the wall or attic. Electric wiring to ceiling fan box preparing to mount the ceiling fan boxwire into the ceiling fan box through a wire bushing attaching the ground wire mounting the cradle bracket the ceiling fan wires are connected close the canopy attach the fan blades and wiring a double stack switchinstalling double stack switch and explain how to connect the ceiling fan. A good place is somewhere out of the way but still within reach.
Connect white wires together. Tuck the wires back into the box. The operation involves making pigtails so its a good idea to know how to do that. Connect the greencopper wires together. A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits. Turn the power back on and test the fan.
How to wire an onoff switch for an auto cool fan step 1. The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan. Connect the lighting wire typically blue to the black fan wire and the black ceiling wire.