Dual Electric Fan Wiring Diagram. A helpful diagram i found for wiring this hayden fan switch because the. Pin 87 yellow wire pin 85 orange wire pin 86 grey wire pin 30 red wire.
Dual electric fan relay wiring diagram. The dual 12 inch fan assembly is a great choice for most cars and trucks spal relays and wiring harnesses are designed for maximum performance. Primary cooling fan dual fans with dual relays single speed onoff using ground switched devices only for primary activation using dual relays for two fans is not required.
Red wire connect one end of the red wire to the 1 electric fan positive wire.
Wiring dual cooling fans. Relay 2 electric fan 1 electric fan 2 87 87a 30 86 85 orange. The supplied diagram below using dual relays with a single temp sensor is both the most reliable and easiest method weve found for wiring dual fans. Using a yellow butt connector and the supplied 10 ga.