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Old 08-05-2017, 06:22 PM   #1
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Wiring 12 volt Cooling fans for Driver

Can anyone suggest the best place to access 12 volt power to run to small fans? I have one fan mounted over the drivers seat and the other over the passenger door. Wiring for the fans is complete to inside the operators control panel where I have two separate switches installed. I am uncertain if I can tap into something inside the panel or need to run a line to the battery box. I would prefer that the fans could operate without the ignition being turned on. My bus is a 96 Bluebird conventional. Thanks for any help offered!!
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Old 08-05-2017, 06:39 PM   #2
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From the outside (right outside of the driver's area), open the access door. Inside, you'll see several nuts at the bottom. The red-wired nuts are hot all the time.

The sole drawback is that if you leave the fans on, they WILL suck the batteries dry in no time flat.
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Old 08-05-2017, 08:02 PM   #3
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You should have spare places in your fuse panel. You could look in the control panel and wore them off the solenoid that kicks in with the key (with inline fuses)
Or repurpose one of the switches from the 8way lights.

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Old 08-05-2017, 08:27 PM   #4
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On my bus (1974 chev bb) I reused the switches for the rear heater fans.

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Old 08-06-2017, 08:41 PM   #5
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Quote:
Originally Posted by Njsurf73 View Post
You should have spare places in your fuse panel. You could look in the control panel and wore them off the solenoid that kicks in with the key (with inline fuses)
Or repurpose one of the switches from the 8way lights.

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Is this the solenoid? It is located in the corner of the control box. One terminal is hot all the time. Would it be safe to tie in here for power? I dont want to burn anything up!
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Old 08-06-2017, 09:23 PM   #6
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i would just use my meter and connect to a hot switched wire and add a fuse, or as mentioned above, use existing rocker switch that is switched. is quite easy
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Old 08-06-2017, 09:32 PM   #7
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Yes that is a solenoid. It should be switched on when the key is in the accessory or on position. The terminal that is turned on should be wired to either a breaker/ fuse or a bus bar that feeds multiple breakers.
It would be a bad idea to wire to the constant hot terminal. Even if the constantly hot terminal has a fusible link it's high current.
If there is a single breaker tied to the switched terminal the other side of the breaker feeds the options that work when key is on. Follow those wires and they would go to dash switches. You could add to that end of the breaker.

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