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General trobleshooting

My school has a blue ROV that has not worked ever since I went there. I offered to fix it but I’m not sure where to start. I checked all the connections and the battery along with the seals. a few of the motors are hard to spin when it is turned of and wont spin when turned on. I think it is a mechanical issue however I’m not sure. how should I go about troubleshooting and getting repair parts?

thank you,
Ged

Hi Ged, I’d probably start by stripping the whole ROV, Start with Rusty’s vid’s on assembly and work your way through the basic’s, Get a hold of a brushless motor tester or setup an Arduino with an esc to test functionality. Your battery may also be very old so a replacement or borrowed item may help if you don’t have a Lipo tester.
There is a function in the setting’s menu for setting motor directions which could also be used to test the motors if you are getting power.
Do the Pi and pixhawk lights come on when powered?
Do you have a video feed?
There’s also the option of contacting 1 of the suppliers, we use Ian @ Buccaneer, Very helpful and a wealth of knowledge. (like so many others on here) He’s always ready to answer any of my ridiculous questions.

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