Finally getting around to installing my jusnes efans. Instructions state to run the switched 12v to a switched source....my question is this: If the controllers are thermostatically controlled, shouldn't I just go ahead and feed that switched pole 12v 24/7?

They caution that it can make your fans run after the truck is shut down...I thought that was one of the points of electric fans - that they will run until the coolant cools down, thus preventing heatsoak? I'm not real keen on the idea of running my truck through 105F temps with the A/C on max, then shutting all cooling off when I reach my destination (yes, I know the mechanical is doing just that, but again, I thought that was one of the benefits of electric fan cooling).

Anyone have their yeller wire run to constant hot, and if so, any charging problems?

 

You can do that but why? The fans will not turn off and run the battery down. I live in TX and we have had hot day but my fans have done the job as need. Never came close to overheating in the hot summers at all and the fans have been installed for over 3 years now. The A/C switch turns the fans on and alot of times the fans are not needed with the A/C like when you are rolling down the freeway. As long as the temp gauge stays where it is supposed to then dont worry about it. Look at your gauge before the fans and after you install then to note any difference. The fans are gonna keep you truck running much cooler. It is not necessary to wire them up like that and the fans do not run as much as you would think especially if you are not using A/C.

 

I have ran mine to be on 100% of the time. It trips people out when the fans start up on their own to cool off the truck while it's not running.

 

The Flex-a-lite kit has a 6 second delay built in so there won't be a drain when starting even with the power on sense connection. I bring that up because you may find yourself in a situation where you need that extra juice. If you do run it that way you might want to add a kill switch to turn it off for that rare occasion.

 

I had to run my power on signal wire thing all the way into the cab with my fal270, my controller has a delay, even with the ac signal, it wont start till after the delay, i used a fuse tap to for the signal, everything works great, i think the fans on my flexalites suck though, the shroud is rocking and the controller is top notch, just hope it lasts, but the fans seems to sqeak, is there a way to lube efans? anyways goodluck with those efans, i definetely feel more power, and not just imagine it, and i love all the space it makes, i wrench my own truck.... use plenty of split loom and heat shrink tape on the loom, and hs tubes where you splice, if not heat shrink tape then quality electrical tape like 3m super88, man efans are a pain in the *** to install

 

running the fan after the engine is shut down on a street driven truck is really not doing anything but wasting your batery

 

I was reading on this controller the other day. SOUNDS GREAT with the speed triggered fans.

-They will NOT run at highway speeds thus lenghtening the life of the fans IMO.
-Turn the fans ON/OFF remotely. Yeah big deal but no wiring to run into the cab.
-Alarms for fan failure and overheating status.
-Adjustable fan cool-down timing
- 3 temps for 'fan on' or threshold conditions (no more ****1ng around with pots)
-Alternates fans during use for fan life
-Single fan start-up

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