Feigao 540c 9l in trouble

[Philyon]

I know that some "bip" were heard during my last run and the car stopped, but I don't know where these "bip" came from. I thougth it was a heating problem from motor or esc (I have a BK9920). I made a new programing sequence from the 9920 but it didn't solve the problem.
Unfortunately I haven't got any other motor or esc to test whith...

[Gustav]

The noises are normally the controllers making sounds through the motor.

It seems like it may be the esc.I'd try reprogramming it again just incase and possibly take the heatshrink off and look for any damage,and check that the programming jumper has a good connection.

Another thing to do is check all the connections throughout including the batteries.
If the steering is working smoothly then you can try the esc in the steering slot on the reciever to rule out a bad reciever connection,unlikely to be that though if you're getting the programming beeps.

[BrianG]

Does the motor turn fine by hand? If not, then one or more coils could have overheated and unglued and are now touching the rotor.

Kinda sounds like the ESC has a bad output phase or something.