Quote:The fans are meant to kick up the RPMs when the heat starts to build, so it may be louder or quieter at times, though most OEM fans are pretty loud regardless, so like I mentioned dust could be causing it to block its motion.  Since you said you dont know how to open it, thus you've obviously never cleaned the inside, I'm sure you have a build up of dust which is causing it to overheat.  This could be exasperated even more if you have pets or carpet. 

 

You mean dust can prevent the fan from working properly?

 

I learned fans can get louder temporarily when I got my hearing aids. When I told Mom about that, she said I am just not used to the noise and when she got her first pair, traffic sounded like a plane. So I never thought something could be wrong until yesterday when I could hear the fan without them.

 

Yes, I do have a pet and carpet, but Mom recently vacuumed my room and dusted everything.

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