MALIBU Electric Fan Wiring

[Ratchet]

I’m not the smartest when it comes to wiring/electrical issues, so please be kind.
I’m in the process of installing dual electric fans. The wiring kit includes two (4 prong) relays. #30 wires are to go to the batter.
. I’ve located a wire coming off the battery and when I checked it with the volt meter, it stays hot even without the key on. Should both #30 wires be connected to this wire?

 

[oldsofb]

This is a Painless dual fan kit, but the #30 to Batt. power is shown in the schematic if that helps.
https://www.painlessperformance.com/Manuals/30117.pdf

Hutch

 

[Ratchet]

Hutch,
Thanks for the Painless information. What I really need is an answer for the last two sentences in my initial post.

 

[Kratos]

Hutch,
Thanks for the Painless information. What I really need is an answer for the last two sentences in my initial post.

I would say "YES" you would have a constant 12V Available. Assuming that your fan "On and Off" is controlled by a temperature switch. Mine, sourced from about a 2005 Malibu, has a Battery constant 12 V, running to two Relays, that are controlled by two switches in the dash. That I control, manually ( But sometimes I forget to switch them off)

 

[Ernest]

Relay pinout... #30(fused +12v source/battery), #87(+12v output/fan), #86(key on +12v source), #85(ground source, manual override/thermal switch)

 

[Ratchet]

Thanks. All of your suggestions and drawings have made a big difference. I was able to get it almost finished today.

 

[Ernest]

When choosing a relay.... find one that has a built in supression diode.

Diode: The diode is responsible for providing transient voltage suppression. The idea behind having a diode is to ensure a smooth transition between states when the relay is switched such that any transient voltage spike is suppressed. When the relay is switched off, the diode provides a low impedance path for any transient in the relay, which effectively diverts any current and voltage spike away from the switching circuitry.

 

[Built6spdMCSS]

Dual fans with 2 relays, simple on/off on each. You can add a third relay for low/high speed.

 

[Ratchet]

The fans do not come on after following the diagram that came with the relays.
What steps do I need to take?
Please be specific.

 

[Ernest]

What are you using to activate the relays with... a thermal switch or a manual override switch?

If you want to test the fans by themselves to make sure they work, hook it directly to the battery terminals temporarily.