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Old December 11th, 2011, 11:54 AM
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Electric Fan
Can I hook up my dual electric fans with a simple, "off" and "on" switch??
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Old December 11th, 2011, 11:59 AM
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Originally Posted by Dokks74
Can I hook up my dual electric fans with a simple, "off" and "on" switch??
What fans are you talking about? If rear defog, they will run with on/off but they are designed for off/low/high. A 3 position rocker switch is really cheap.
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Old December 11th, 2011, 12:11 PM
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Yes you can, however I would put them on a temp control switch also. Not much more additional work involved.
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Old December 11th, 2011, 01:47 PM
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Yes you can. I would wire 2 relays in the circuit to make sure you got good power to the fans.
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Old December 11th, 2011, 01:58 PM
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You can add a secondary manual control, but you really need the primary temperature sensor in the radiator to switch them on when needed. A simple "forget" could cause serious engine damage.
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Old December 11th, 2011, 03:40 PM
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Originally Posted by Allan R
What fans are you talking about? If rear defog, they will run with on/off but they are designed for off/low/high. A 3 position rocker switch is really cheap.
My bad. I was talking about the cooling dual fans,lol... I sometimes get ahead of myself..
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Old December 11th, 2011, 03:41 PM
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Originally Posted by Lady72nRob71
You can add a secondary manual control, but you really need the primary temperature sensor in the radiator to switch them on when needed. A simple "forget" could cause serious engine damage.
I was going to use lighted switches, one for each fan. The switch HAS to be lighted while running.
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Old December 11th, 2011, 03:43 PM
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Originally Posted by plee3 64Olds
Yes you can. I would wire 2 relays in the circuit to make sure you got good power to the fans.
I was going to run 2 separate systems, one for each fan, grounded at the radiator support, hot wires going to 2 switches,fused, and then right back to the battery.
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Old December 11th, 2011, 06:16 PM
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Some of the posts here have ideas you should follow. Specifically:
Use of relays (one for each fan)
Wire one fan into a temperature switch
Other (backup) fan can be manual
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Old December 11th, 2011, 08:04 PM
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x2 on 68conv. It is best to use relays. For they take the load of the fan , not the switch. That way the switch is only an on/off. The switch turns the relay on and the relay supply's power to the fan.
Gene
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Old December 12th, 2011, 05:30 AM
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Originally Posted by 64Rocket
x2 on 68conv. It is best to use relays. For they take the load of the fan , not the switch. That way the switch is only an on/off. The switch turns the relay on and the relay supply's power to the fan.
Gene
Ok, where do I get such a relay?? What would it be called??
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Old December 12th, 2011, 06:00 AM
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Originally Posted by Dokks74
Ok, where do I get such a relay?? What would it be called??
Your local auto parts store should have relays. Similar to this one:
http://www.bgmicro.com/REL1068.aspx

They need a 12V coil, and 30-40Amp contacts.
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Old December 12th, 2011, 11:19 AM
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Originally Posted by Lady72nRob71
Your local auto parts store should have relays. Similar to this one:
http://www.bgmicro.com/REL1068.aspx

They need a 12V coil, and 30-40Amp contacts.
tanks!!
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