2003 Sportsman 400 cooling fan issue

rsrogersnt

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Seems being a newbie i might have posted this in the wrong section so here is my second time.

I just bought this bike and something weird is going on. I had it parked in the driveway, key in but off, it was about 90 degrees outside and the cooling fan came on. Key in but off. I started the bike and turned the bike off to see if it would go off and it didn't. I restarted the bike and it started flashing that it was running hot. If it is a sensor, how is the bike getting power with the key off. I have 3 bikes so I am going to try to repeat it, get fan to come on, and then swap out ignition switches with anotherbike to see if it comes back on or stays off. I figure this is a good test of switch. Any thought or experience like this? Sorry for the re-post.

Thanks
 
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