Dual Electric Fan Wiring Diagram With Relay

There are several ways that a dual fan can be wired.

Dual electric fan wiring diagram with relay.

For example dual thermostat switches or dual relays could be used to control each fan separately. Then connect switched power usually from your ignition switch to the blue wires on both relays tab 86. The fan will turn on when the a c compressor activates. Primary cooling fan dual fans with dual relays single speed on off using ground switched devices only for primary activation using dual relays for two fans is not required.

Finally run a fused constant power to both of the red wires on the relays tab 30. Connect the red wire to the sending unit wire of the original fan relay harness. It uses our 40 amp electric relay kit part number 91064044 and electric fan sensor part number 91064013. However two relays will divide the load.

Connect yellow and grey wires to ground. 30 other red wire needs constant 12 volt power from the battery. Cooling fan relay wiring diagram how to wire a fan relay hvac in dual fan relay wiring diagram image size 730 x 656 px and to view image details please click the image. And if a relay fails you will still have one fan running.

Diagram based automotive fan relay wiring completed dual electric fans wrg 0626 5 pin 24 volt how to properly wire cooling cr 6881 12v 4 gtsparkplugs for lsx beat cetar kultur im revier de 12 amp schematic www diagram based automotive fan relay wiring completed wiring dual electric fans wrg 0626 5 pin relay wiring diagram 24 volt read more. 86 gray white wire goes to the ignition switch. 87 red wire connects to the positive wire on the electric fan. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay tab 87.

The orange wire from the a c relay goes to the 12 volt of the a c compressor clutch wire. You could use one relay. Or a single relay could be used to control both fans. It uses a 40 amp electric relay and electric fan sensor.