Radiator fan LED

[Meatball]

Has anyone wired up a dash LED to signal when the fans are running?
Any suggestions where to pick up from other than the otter switch?

[spend]

Take fan power, that at least tells you relay is working, which the otter switch method doesn't. However you have to overcome the fan windmilling generator effect and it still doesn't really tell you if the fan motor is working?

I fitted them with a switch so I can disable them as I only need them for occasional diagnosis really and the rest of the time they are a bit of a distraction.

[Meatball]

Cheers
I didnt consider the distraction it may cause.

[scotty_d]

Yes to avoid the mini generator effect take the feed from the switching side of the relay as i did on mine.

But as said cant be 100% the fans are working but tell you when they are ment to kick in but a qjick pre run test with the overide switch let me know it was working before my run.

Edited by scotty_d on Sunday 21st November 21:50

[Ribol]

One of my fans is controlled by the otter, the other by another controller so the LEDs show which one is doing what and when. Obviously that is only of interest when in traffic. Looks like this: