Noises coming from monitor Nitro VG240BMIIX 24

Previous year I bought Acer Nitro VG240BMIIX 24 inch monitor. It works fine but everytime, the monitor it is in sleep mode it just keeps making this irritating noises, it’s not very loud but I can hear it if I lay in bed. I find this noise very irritating so I have to get out of bed to turn of the monitor. I don’t know what this noise, but I thought it was a little bit the same as the noise a laptops fan makes. I can also hear this noise if the monitor is completely turned of, so not in sleep mode, but then it’s almost not hearable, only sometimes and not very disturbing. If anybody can help me figure out what this noise is and if this is normal. Thank you

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Kelvinoss

Edit: It’s more of a high pitched noise, rather than the sound of a laptop fan

billsey

Does the noise continue if you unplug the monitor? It might be a fan, but more likely speakers responding to a grounding problem.

Kelvinoss

I have unplugged the monitor and I still hear the sound, I also tried to mute the speaker so the volume is 0.

Kelvinoss

billsey said:

Does the noise continue if you unplug the monitor? It might be a fan, but more likely speakers responding to a grounding problem.

I just checked and the noise is still there if I unplug everything but disappears after a couple of minutes. How can I fix it?

Kelvinoss

And if I plug in the power, I can hear the noise instantly

billsey

That is so weird...

OK, so likely something electronic buzzing inside. Are you still in warranty? There aren't a whole lots of electronics that can cause a buzz.

Kelvinoss

billsey said:

That is so weird... OK, so likely something electronic buzzing inside. Are you still in warranty? There aren't a whole lots of electronics that can cause a buzz.