# Grinding noise coming from one motor

**URL:** https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543
**Category:** AVR Drone Hardware
**Created:** [August 29, 2023, 3:20pm UTC](https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543 "2023-08-29T15:20:11Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![emoons](https://avatars.discourse-cdn.com/v4/letter/e/50afbb/32.png) [@emoons](https://forum.theavr.org/u/emoons)
#### Post date: [August 29, 2023, 3:20pm UTC](https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543/1 "2023-08-29T15:20:11Z")

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The students are running the drone motors, and one of them is making a grinding noise. We swapped the motor out with one from last year, and it is doing the same thing.

What could be the issue?

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### Author: ![Andrew\_R](https://avatars.discourse-cdn.com/v4/letter/a/e95f7d/32.png) [@Andrew\_R](https://forum.theavr.org/u/Andrew_R)
#### Post date: [August 29, 2023, 9:38pm UTC](https://forum.theavr.org/t/grinding-noise-coming-from-one-motor/543/2 "2023-08-29T21:38:11Z")

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Hey emoons,

I’m really sorry to hear that you’re going through this. Could you do us a favor and send a short video that captures the sound? This would help us get a clear idea of what’s going wrong and find the best way to help you out.

Thanks!