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UM2 Extruder Fan always on

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My Extruder fan is always on -as long as the switch on the back is on. This makes it the machine quite noisy to the extent that I switch off the main switch between prints. Anyone else find this? I would expect that if this were normal lots of people would be commenting on it.

I only found 1 related thread for the UM original and it's a year old; this seems to suggest that this is not normal.

Could anyone else please share their experience on this?




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It's normal that it's always on. It's not normal that it is noisy. Mine is too quiet to hear more than about a meter away.

Maybe buy another one? Or take off the label and add a drop of oil? Or maybe a blade is damaged and rubbing?


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Thanks all for the responses. I thought the issue would be that the fan is coming on, I had overlooked the obvious, but now that I think about it it may have been quieter when I first got it. That is a better outcome because it means that once fixed the machine will be quieter all round - will investigate getting a new one.

Thanks again.



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