Questions about fan controllers - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 11-12-2013
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Questions about fan controllers

I have seen several fan controllers that people made. Many of them are pretty cheap to build and appear somewhat simple. But there are so many variants it is tough to figure out which one I should go with. To further complicate matters I am not well verses in electrical systems. So, I decided to just buy a fan controller off the shelf at the parts store. My attempted install was a miserable failure. I figured I better go back and see what you all have come up with and request some guidance in putting one together that will work and not cost a ton of money.
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Old 11-12-2013
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electric fan controllers for cooling the radiator?
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Old 11-12-2013
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Yes.
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Old 11-12-2013
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What specifically do you want to know? The basic kits have a probe that goes into the radiator, it monitors the temp, once it hits 210 then it kicks the fan on (latches the relay) until it cools to 192 or something. Most are adjustable based on where you turn the screw.
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Old 11-12-2013
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I have seen some that people have posted that they biult from scratch and used a different type of sending unit. I do not like the type that uses a probe in the rad.
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Old 11-12-2013
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You can build a controller pretty easily with a few relays, but you will need some electrical knowledge. The problem with most home made ones is that they are just on low all the time and high when the A/C kicks on, and doing it that way wastes most of the efficiency you get from an e-fan.

Summit and a few other places sell good controllers but they all use temp probes and cost over $100, there is really no way around it.
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Old 11-13-2013
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The one I bought at the parts store was just under $30. However, once i got into the install I realized I have to "biuld" it any way. I will post my attempt in my Ranger biuld thread to illistrate my point. Once I got through with cutting and running everything, I could have come up with a much more efficiant and cleaner install if I just start from scratch.
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