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Hi I'm using the following NVR

https://www.dahuasecurity.com/products/All-Products/Network-Recorders/Lite-Series/NVR4/L-Series/1HDD/NVR4108HS-4KS2/L

But the fan is really noisy enough to disturb the sleep.

Please checkout the AV

What I did so far.

I opened the NVR and tried adjusting the cooling fan but the noise started coming again.

I can't remove the fan as this would reduce the lifespan of circuits.

Any ideas on how to fix it ?

1 Answer 1

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Makes sure that the blades of the fan are clean and so is the grill.

If thats not enough then replace the fan. You will need the model number, or the dimensions and rating which is normally on the centre hub.

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    Please try to resist the temptation to answer off-topic questions - it gives people the [unfortunately now correct] impression they can ask anything & get an answer.
    – Tetsujin
    Commented Sep 5, 2023 at 7:45
  • @Tetsujin - What's the right stack overflow group to ask this ?
    – King
    Commented Sep 5, 2023 at 13:15
  • Perhaps superuser.com
    – Tetsujin
    Commented Sep 5, 2023 at 14:12

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