# T200 Thrusters Rattling

**URL:** <https://discuss.bluerobotics.com/t/t200-thrusters-rattling/6887>\
**Category:** Thrusters and Motors\
**Created:** [February 17, 2020, 6:43pm UTC](https://discuss.bluerobotics.com/t/t200-thrusters-rattling/6887 "2020-02-17T18:43:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![one\_au](https://avatars.discourse-cdn.com/v4/letter/o/bc79bd/32.png) [@one\_au](https://discuss.bluerobotics.com/u/one_au)\
**Post date:** [February 17, 2020, 6:43pm UTC](https://discuss.bluerobotics.com/t/t200-thrusters-rattling/6887/1 "2020-02-17T18:43:28Z")

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Hello,

We purchased 6 of the T200 thrusters and are beginning to test them. We noticed a rattling sound coming from one of the thrusters when testing. We’ve taken the housing and propeller off to try to diagnose the issue but don’t want to move forward without getting some advice here. Here’s a video of it happening: [T200 rattling - YouTube](https://youtu.be/gIhVOFxeOUw)

You’ll notice that the orientation of the motor has an affect on the amount of rattling.

Has this issue come up before? If so what are some common solutions to this or should we return it for a new one?

Thanks!

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**Author:** ![Anthony\_Pirotta\_1](https://avatars.discourse-cdn.com/v4/letter/a/5e9695/32.png) [@Anthony\_Pirotta\_1](https://discuss.bluerobotics.com/u/Anthony_Pirotta_1)\
**Post date:** [February 17, 2020, 8:54pm UTC](https://discuss.bluerobotics.com/t/t200-thrusters-rattling/6887/2 "2020-02-17T20:54:09Z")

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The thrusters are lubricated by water it has to be in the water for it to work properly. And you can only turn them on outside of the water for a little bit. I think it even says so on the blue robotics web page.

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**Author:** ![kklemens](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/kklemens/32/2247_2.png) [@kklemens](https://discuss.bluerobotics.com/u/kklemens)\
**Post date:** [February 17, 2020, 11:07pm UTC](https://discuss.bluerobotics.com/t/t200-thrusters-rattling/6887/3 "2020-02-17T23:07:16Z")

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That’s normal. [T200 Thruster Usage Guide: Clicking Noise](https://bluerobotics.com/learn/t200-thruster-usage/#clicking-noise)