# Motor 3 not spinning

**URL:** <https://forum.theavr.org/t/motor-3-not-spinning/278>\
**Category:** Technical Support (Official)\
**Created:** [October 19, 2022, 9:03pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278 "2022-10-19T21:03:13Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![dstarnes](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/dstarnes/32/122_2.png) [@dstarnes](https://forum.theavr.org/u/dstarnes)\
**Post date:** [October 19, 2022, 9:03pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/1 "2022-10-19T21:03:13Z")

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Hello,

We are having some problems with our drone. One of our motors on our drone is not spinning and we have tried to implement the following solutions:

1. We have done ESC calibrations.
2. We have checked cable continuity.
3. We have switched PWMs and PWM I/O cabling.
4. We have switched the motors on each port and it will spin unless on port 4 of the PWM.
5. We got a new ESC.
6. We have reinstalled firmware and recalibrated sensors.
7. We watched the ESC troubleshooting video with the beeps. The motors on ports 1-3 will complete all 5 beeps.

This has let us to believe that it is a problem with the FC. If you have any input on solutions please let us know ASAP. Otherwise we will order a new flight controller.

Thank you for your time!

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**Author:** ![jcloud](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/jcloud/32/125_2.png) [@jcloud](https://forum.theavr.org/u/jcloud)\
**Post date:** [October 20, 2022, 5:53pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/2 "2022-10-20T17:53:33Z")

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See this other post about motors not spinning: [2/4 Motors not spinning - Technical Support (Official) / AVR Drone Software - Bell AVR Forum](http://forum.theavr.org/t/2-4-motors-not-spinning/268)

Let us know if any of this helps. Also please provide troubleshooting info back to us as you work through the problem.

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**Author:** ![dstarnes](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/dstarnes/32/122_2.png) [@dstarnes](https://forum.theavr.org/u/dstarnes)\
**Post date:** [October 21, 2022, 1:24pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/3 "2022-10-21T13:24:20Z")

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Yes, we’ve already performed the troubleshooting described in that post.

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**Author:** ![dstarnes](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/dstarnes/32/122_2.png) [@dstarnes](https://forum.theavr.org/u/dstarnes)\
**Post date:** [October 24, 2022, 5:05pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/4 "2022-10-24T17:05:30Z")

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Help! Still not working. I didn’t see a FC as a replacement option. How can we get one?

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**Author:** ![dstarnes](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/dstarnes/32/122_2.png) [@dstarnes](https://forum.theavr.org/u/dstarnes)\
**Post date:** [October 24, 2022, 5:16pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/5 "2022-10-24T17:16:54Z")

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We sent an email to [bellavr@roboticseducation.org](mailto:bellavr@roboticseducation.org). Would appreciate your response!

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**Author:** ![dstarnes](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.theavr.org/dstarnes/32/122_2.png) [@dstarnes](https://forum.theavr.org/u/dstarnes)\
**Post date:** [October 28, 2022, 2:20pm UTC](https://forum.theavr.org/t/motor-3-not-spinning/278/6 "2022-10-28T14:20:46Z")

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Solution was new FC. PWM controller on old FC looks fried.
