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Smelling a burning scent when heating up the printhead

Allanlin333

By Allanlin333
in UltiMaker 3D printers

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Allanlin333

Allanlin333 0

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Posted · Smelling a burning scent when heating up the printhead

Hello,

just a few days ago, my printhead's nozzle got clogged, not knowing any better I replaced the block with a new one included with the printer. Unfortunately the temp sensor got stuck so I have to dig in to the electronics board and replace the old temp sensor. Now the printer is working, but when I heat up the printhead a burning smell started blowing out of the small fan at the back, and yes I made sure that none of the wires are touching the fan shroud.

What should I do?

Thanks.

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