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So,
I'm dealing with a seized fan clutch and was thinking about switching to an e-fan setup.
Probably getting a flex-a-lite, there's the Taurus fan but they cause a big A spike on startup.
I could just go with a one relay temp probe system but why do simple when you can overcomplicate things right??
So the plan is to be able to switch between always ON, Auto and always OFF plus an A.C. override.
Always ON is always ON duh
AUTO is switched on by temp probe but when A.C. is on fan is always ON
OFF is off.
Now I also want to incorporate a big red LED when it's turned off and a green LED when the fan is running (actually running and not only when it's relay is activated in case a relay malfunctions)
Always ON -> GrnLED always on
Auto --> GrnLED on when fan turns on
So I made up this little circuit, does it make any sense?
Consider the two SPDT's top left as a DPDT on-off-on with the OFF not pictured
Is there a simpler way to do this?(there probably is)
Now this is with "external" LED's that I'd have to integrate in/around the switch/switchpanel but that's going to become bulky and is a bit oldschool.
In come illuminated rocker switches but how do I wire that so when the fan is OFF the switch illuminates red? Ideally then I'd also want it to illuminate in the ON/AUTO positions (I found some dual color rockers) or maybe just always on.
Flex a lite sells a rocker switch thats red when off , no light on auto and blue when on but they want 70 (yes seventy) USbucks for it and it probably onlg works with their $170 controller.
So here I am, overthinking things and curious about advice from the wiring specialists on here.
Oh and there should be a fuse before the fan of course forgot to add that in the diagram
Edit: and now I see that the 12v for the LED relay shouldn't come straight from battery of course but an ignition 12v or something or the red LED will be on all the time with the truck turned off.
Honestly, I could read or decipher all of that if it were in true blueprint form but it doesn't transfer into the creative side of my mind which thinks in relays, diodes, wiring, and switches with an array of motors or devices strewn across a work table for me unfortunately.
Don't use the Taurus fan, the spike is the least of your issues with it, as the E-Fan itself is molded into the shroud pc and if it fails, you have to replace the whole shroud too every time. The way to go is the volvo shroud.
Best Resource for that sadly is -- https://www.amazon.com/gp/product/B003MXD00Y/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
The fan that goes in it I can't find the part number just yet but I will when I get back into the office Monday afternoon. But that fan is just a little bit better CFM wise and it can be replaced without the need to trash the shroud too. Fan can be sourced from Rockauto, Flex-lite, or others.
When we started out on our E-Fan setup there is a better way out side of that 1950's East Ukranian/Russian switches and lights method clutter. You can spend a few dollars to automate that setup and just use a switch to override for an all Off/On feature and just have a dual throw switch that lights up to do that in at least an option of 4 colors or so and either vertically written or horizontally in many creative manners for far less and great quality.
I would refer you to the following links.
https://www.therangerstation.com/tech/volvo-electric-cooling-fan/
- Following up I can get you all the electrical connector - (manufacture contacts to make the pigtails)
- The sensors and relay setup can also be had off of Rockauto
If you wanted to spruce up the job with some better than average Autozone or used Salvage parts, we can offer some options.
- https://www.12degnorth.com/product-page/water-temperature-sensor-adapter - (38mm)
- https://www.12degnorth.com/product-page/silicone-lower-radiator-hose-ford-ranger-v6-04-11-by-mishimoto - (lower hose)
- https://www.12degnorth.com/product-page/silicone-upper-radiator-hose-ford-ranger-v6-01-11-by-mishimoto - (upper hose)
For switching, We do carry the Otrattw switches, there is a ton of work to add them to the site. The margins are small, we are happy to send them customers because they make an amazing quality product line and we use them in our installs. There is a metric-ton of information available from wiring their switches to explaining how they all differ. Many, many options here.
- https://www.otrattw.net/home.php
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