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I have an 04 450 ES and the fan doesn't work. I grounded the sensor wire to the motor and the fan will come on but blows the fuse everytime. Anyone have an idea what could be the problem? Thanks
 

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theres a short somewhere in the system check all the wires and connections or could be a bad fan control unit
 

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not unless you have a friend that has the same atv and you can try there's out
 

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i agree with old yeller ,that controle unit is $164 bucks ....toggle switch $10 .if mine goes bad someday i know what i will do !
BTW welcome to the forum!!!!!
 

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You may want to also check and make sure you don't have anything obstructing the fan blade movement. Also if the fan or maybe you have a bearing in the fan going out, it could cause it to drag, causing the amp draw of the fan to go up, thus blowing your fuse. If you have a volt ohm meter you could check the fan to see the amp draw.

Just some thoughts,
Max, O-P
 

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I have an 04 450 ES and the fan doesn't work. I grounded the sensor wire to the motor and the fan will come on but blows the fuse everytime. Anyone have an idea what could be the problem? Thanks
We have been having the same issue- we have discovered its all in the connectors the box plugs into.
I can't believe all the people that have had the same issue~
 

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I have an 04 450 ES and the fan doesn't work. I grounded the sensor wire to the motor and the fan will come on but blows the fuse everytime. Anyone have an idea what could be the problem? Thanks
Mine was out also. 12 volts to fan to make sure is working. Then I replaced all three sensors. Oil, air, and control box. all is working now. Good luck.
 
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