Motor Burned out?

After a crash the other day i started investigating why. I found that on the motor test one of the motors was not spinning properly. Where the other 3 would spin freely the 4th motor had trouble revolving and seemed to stagger (not spinning smoothly at all in fact only did maybe 2 or 3 full rotations in a 2 second period)

Is this a motor burn out or something else… I checked a differnt ESC and the ESC is not the problem


It certainly sounds like the motor is the problem. Nicely done tracking it down with the MP’s motor test!

Looks like one of your motor phases is burned out or shorted out. You should be able to confirm by checking resistance across the motor leads. Just test A-B, A-C, and B-C and one of them will probably be either open, or low resistance.