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  1. This article will provide a wiring diagram to help you understand how to wire your Spal fan. The wiring diagram for a Spal fan typically consists of the fan motor, relay, temperature switch, power source, and ground.

  2. Nov 4, 2020 · On the wiring diagram it shows one "Grey" wire that goes to the temp sensor, which looks like it's a single wire sensor with a lug connection. What's up with the sensor with two Green wires? Once you correct the wiring connections above see if the fan comes ON if not switch the Grey wire to the other Green wire.

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  4. Feb 20, 2008 · I want to wire my stock aux fan to come on as usual, and i want my SPAL fan to come on only at the 'high speed' setting. I want both fans to stay on at high speed. I also want to wire a override switch inside the cabin that will allow me to manually turn on the SPAL fan without affecting the automatic switch operation.

    • ITEMS INCLUDED IN KIT
    • INSTRUCTION BOOKLET
    • ITEMS
    • MAIN HARNESS INSTRUCTION BOOKLET
    • 20 AMP BCU+ (2) FUSE

    ITEMS INCLUDED IN KIT FAN-PWM CONTROLLER FAN-PWM CONTROLLER ITEMS INCLUDED IN KIT ITEMS INCLUDED IN KIT

    BCU+ INSTRUCTION BOOKLET INSTRUCTION BOOKLET HARDWARE

    INSTRUCTION INSTRUCTION BOOKLET Parts ITEMS INCLUDED

    MAIN HARNESS MAIN HARNESS SPAL TEMP SENSOR HARNESS SPAL TEMP SENSOR HARNESS MAIN HARNESS MAIN HARNESS OEM TEMP SENSOR HARNESS SPAL TEMP SENSOR HARNESS MAIN HARNESS

    FAN-PWM CONTROLLER FUSE HOLDER BCU+ BLUE RING CONNECTORS

  5. The secondary fan is wired according to the diagram posted, not shown in the diagram is the Primary fan which is directly off the GM harness and grounded to chassis. Thanks for the file. I'll take a look and ask if I don't understand something...which is likely.

  6. Following these steps and consulting the specific wiring diagram for the Spal brushless fan being installed will ensure a successful wiring process. It is essential to double-check all connections and perform a test to ensure the fan is operating correctly before completing the installation.

  7. Feb 23, 2021 · You are close. Just read the diagram. A relay is a switch of power on/off. You engage it with your "switch wire". So 30 goes to Battery + ( I suggest fused battery power), 85 is ground (Anything will work here), 87 isnt used(This is a constant 12v and no switching) and 86 is your EFI wiring trigger.

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