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The Nintendo Switch is a handheld game console that can be played on the TV via a docking station, or on the go. Released March 3rd, 2017.

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Replaced Nintendo Switch fan goes to 100% instantly

I replaced the Nintendo Switch fan following this guide Nintendo Switch Fan Replacement - iFixit Repair Guide using a fan purchased through ifixit EU store.

However, upon powering on the Switch, the fan instantly goes to 100%
What could be the cause of this? And, how would I go about fixing this issue?

I have checked the connector from the fan to the main board at it is fully plugged

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The Switch was purchased day 1 of release in 2017 and the fan was replaced due to the bearings failing causing it to get very noisy while in use and playing games.

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you might want to contact ifixit, as this seems to be a issue with the fan itself

https://help.ifixit.com/?pk_vid=115dc882...

hope this helps!

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I shall try contacting them directly then.

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@nadie Have you tried plugging in the old fan to see if it behaves the same way? That would confirm a problem with the new fan, otherwise it would say you need to look somewhere else for the source of the problem.

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I put in the old fan this morning and the fan does not spin when I turn on the Switch, unlike the replacement fan which goes to 100 % immediately. It will however, begin to spin once I launch a game like The Legend of Zelda: Tears of the Kingdom. This seems to collaborate that there is an issue with the replacement fan.

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