When I use my laptop while the A/C is on (temperature around 27-28), the fan starts making a grinding noise. This does not happen when the temperatures are high. Further, the CPU's temperatures are around 45-55 when idle.

What I am thinking is that at low temperatures, the fan begins to rotate at a particular speed that causes it to make this noise. When the temperature increases, the noise disappears because the fan starts spinning more rapidly. Some sort of resonance issue, but I may be dead-wrong.

Any suggestions? I took the laptop to the service center but the fan failed me there (made no noise). They simply got rid of the dust in my computer and gave it back to me.

  • 2
    Replace the fan to rule this out. If a new fan works across all usage (idle and heavy use) then it'll have been a bad bearing or dust. – Kinnectus Jun 14 '17 at 15:39
  • The laptop is still under warranty. How do I convince them? The service guys are lazy, and won't check the fan for bearing problems. – Prashant Pandey Jun 14 '17 at 15:41
  • 1
    Persist. Complain higher up if necessary. The fan wasn't making the noise whn you first bought it and it shouldn't be making the noise if it's still under warranty - they should fix or replace it if you can provide evidence it makes the noise. Take a video and include the serial number in the footage to give them the best evidence. Or ask them to have it for a number of days (they may still give it back saying nothing wrong) - this is where you can build your own case against their response. – Kinnectus Jun 14 '17 at 15:43
  • I am making a video of it. Will visit the center tomorrow. Thanks. – Prashant Pandey Jun 14 '17 at 15:44
  • Grinding noise means fan touches a wire. – Overmind Jun 15 '17 at 9:10

The fan is going bad, You only have a few options but the best thing to do is bypass the middle men with the company either find their corporate phone number thats usually best if not then ask for a manager. Corporate usually will put the screws to the people to get the job done right so they dont get bad reviews.

If all else fails post bad reviews EVERYWHERE Yelp, Angieslist, Facebook, Twitter etc after they notice they might change there mind about not fixing your laptop.

For others that are Not under warranty: -Best to replace the fan -Clean the fan out as best you can with Canned compressed air -Buy an external laptop fan (not a great option but may buy you some extra life if you cant replace the internal fan)

  • If the laptop is still under warranty I wouldn't be recommending people void their warranties with suggestions to replace parts... but, yes, the advice given is, ultimately, right :) – Kinnectus Jun 14 '17 at 15:44
  • Edited, he didnt say before it was under warranty – repairmant Jun 14 '17 at 15:45
  • No problem - good answer though :) – Kinnectus Jun 14 '17 at 15:45
  • Though how others might run into this question that aren't under warranty so i put back my other answer and also another incase they refuse to fix it. – repairmant Jun 14 '17 at 15:54

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