Motor Rattles

Critical · Jul 20, 2018

When I start the motors the drone is fine and all motors spin well but as soon as I take off two motors stop for a split second then start spinning at a high speed and at times one of the motors stops spinning when I take off and on the st16 you see the message to enable 5 rotor mode.
What could possibly be the problem?

Dustoff · Jul 20, 2018

Sounds like you have a motor going bad , you download and use GUI to test the motors on the bench with out props . It will you run at time to which one has a problem

Critical · Jul 21, 2018

Dustoff said:
Sounds like you have a motor going bad , you download and use GUI to test the motors on the bench with out props . It will you run at time to which one has a problem

Hello, I have done that and it works fine but as soon as I leave lift the drone then the one of the motor give the problem and stop working. It's fine when I start it but when I lift it and it increases the speed then one of then stops working.

kai_bcn · Jul 21, 2018

check the props? Balance, any damage or cuts? Wouldn't fly it (take camera off in any case)
How many hours on the H?

Dustoff · Jul 21, 2018

kai_bcn said:
check the props? Balance, any damage or cuts? Wouldn't fly it (take camera off in any case)
How many hours on the H?

That would be my next guess is to check the props .

PatR · Jul 21, 2018

Much too little use history information to throw guesses at the problem.

Steve Carr · Jul 21, 2018

If one motor is stopping, the one opposite will also stop and alternately change directions and you will get the 5 rotor mode warning. Change the prop on that motor and see if it corrects the problem.

thoneter · Jul 21, 2018

I agree with Steve. Check the play on the prop hubs.

Critical · Jul 21, 2018

Steve Carr said:
If one motor is stopping, the one opposite will also stop and alternately change directions and you will get the 5 rotor mode warning. Change the prop on that motor and see if it corrects the problem.

That exactly what happens to me, I have not put on the propellers, I will do so and let you know what happens

Critical · Jul 21, 2018

Steve Carr said:
If one motor is stopping, the one opposite will also stop and alternately change directions and you will get the 5 rotor mode warning. Change the prop on that motor and see if it corrects the problem.

Thank you, I have tested this and this worked. Thanks alot!