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Hotend fans on permanently Ultimaker 1


thirty6
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Posted · Hotend fans on permanently Ultimaker 1

Just fitted a E3D hotend and something i have done now means the hotend fans run permanently.

Wire the two hotend fans into into the connector that use to run the one 50mm fan and wired the small E3D fan into my DIY heated bed.

Even with the heated bed turned off the fans still run, so not caused by that.

The only think i have moved are the wires for the hotend as i had to unthread them through the old hotend mount.

I did manage to short the two wires whilst checking the voltage to the hotend fans!!

Any thoughts ?

 

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    Posted · Hotend fans on permanently Ultimaker 1

    Cheers Richardphat

    I have just stripped the whole board and compared it to a board i have with a dodgy switch and i am getting difference resistance readings, which make me realise as you say i 'fried the transitor' bugger.

    Thanks for the info.

     

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