# Fan-Shim losing quietness after a few weeks of use

**URL:** <https://forums.pimoroni.com/t/fan-shim-losing-quietness-after-a-few-weeks-of-use/13863>\
**Category:** Support\
**Created:** [May 11, 2020, 9:00am UTC](https://forums.pimoroni.com/t/fan-shim-losing-quietness-after-a-few-weeks-of-use/13863 "2020-05-11T09:00:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![HelpMe](https://avatars.discourse-cdn.com/v4/letter/h/dfb087/32.png) [@HelpMe](https://forums.pimoroni.com/u/HelpMe)\
**Post date:** [May 11, 2020, 9:00am UTC](https://forums.pimoroni.com/t/fan-shim-losing-quietness-after-a-few-weeks-of-use/13863/1 "2020-05-11T09:00:46Z")

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My Fan-Shim was bought in December because the Rasberry Pi 4 has a heat problem. When I got it, like it was advertised , it was very nice and silent while also cooling very well.

Though now, over time, it has gotten louder and louder to the point in which I can hear it through a closed door.

It was amazing when I got but now I found it hard to concentrate while working with the immense noise that this once-quiet fan makes. I often choose to remove it just to get some silence.

Is this a hardware fault - I do feel almost scammed that this quiet fan is now in-your-face loud. Is this another way to fix this.

PS - I have tried to reposition the fan on the gpio’s to get better results but to no avail.  
I have a Raspi4 pibow case designed for the fan to fit.

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**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\
**Post date:** [May 11, 2020, 11:27am UTC](https://forums.pimoroni.com/t/fan-shim-losing-quietness-after-a-few-weeks-of-use/13863/2 "2020-05-11T11:27:51Z")

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An accumulation of dust etc on the blades can make it out of balance and noisy. Q-tips work nicely for cleaning the dust out.