A Strange Grinding Noise

Hello ifixit team, I have a problem with my Xbox. I think it might be the fan/heatsink. I am no tech expert. But every time I turn the Xbox on it makes a grinding noise. Not everytime I put in a disc or anything. Just when I turn it on. And it stays like that until turned off. And it just repeats and repeats and I am getting sick of it. I was hoping you could tell me what was wrong. Later I might make an edit to this and include an audio recording so you can hear it. And everytime I search up a video of what’s wrong it doesn’t sound the same as the people’s Xbox. But since I got a headset I never had to worry about it. I’m not that concerned. Just hoping you guys could tell me what was wrong and if it ever will damage my Xbox.