Dual Electric Fan Relay Wiring Diagram

The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method.

Dual electric fan relay wiring diagram.

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. Here is a picture gallery about dual fan relay wiring diagram complete with the description of the image please find the image you need. Best bosch relay wiring diagram 5 pole electrical outlet symbol 2018. With dual cooling fans there are two methods for wiring up the relay kit.

Blue wire black wire to chassis ground diagram 1 kit contents qty. Connect the red wire to the sending unit wire of the original fan relay harness. There are several ways that a dual fan can be wired. 86 gray white wire goes to the ignition switch.

This is based on the draw from the fans if the fans are larger and draw more than 15 amps each it s recommended to install a second relay kit as shown below. The fan will turn on when the a c compressor activates. It uses a 40 amp electric relay and electric fan sensor. Hvac fan relay wiring diagram download.

Or a single relay could be used to control both fans. 12 volt relay wiring diagram collections of best relay wiring diagram 5 pin bosch endearing enchanting blurts. For example dual thermostat switches or dual relays could be used to control each fan separately. It uses our 40 amp electric relay kit part number 91064044.

The orange wire from the a c relay goes to the 12 volt of the a c compressor clutch wire. 12 volt wiring diagram best 12v relay pin 5 and roc grp org in. The supplied diagram is both the most reliable and easiest method i ve found. And if a relay fails you will still have one fan running.

For example dual thermostat switches or dual relays could be used to control each fan separately. Connect yellow and grey wires to ground. Wiring dual cooling fans. However two relays will divide the load.

30 other red wire needs constant 12 volt power from the battery. Relay 2 electric fan 1 electric fan 2 87 87a 30 86 85 orange. You could use one relay. 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.

Or a single relay could be used to control both fans. Description 2 relay wire harness 2 40 60 amp relay tools needed wire stripper crimping tool important each relay will control up to two different fans with a combined maximum draw of 25 continuous amps. Electric fan relay wiring kit schematic diagram 1 dual fans wire a3 hyundai radiator ricks free auto repair cooling faq gm trusted nissan altima gone balmoond19 volvo 850 engine volvotips ot 0845 sd thermostat 100s 81h bury seclon de electric fan relay wiring kit schematic diagram 1 wiring dual electric fans electric fan wire diagram a3 wiring hyundai read more.