1 of 4 ESCs beeps and motor twitches

Greetings-

I use 3DR yellow, 20A ESCs on a 3DR quad. They all calibrated as evidenced by throttling up and all motors start and stop on command. The mission planner motor test also validated direction.

My first flight was bad, the quad did a major flip. Since then only 3 of the four motors respond and the bad motor has a beeping ESC. The bad motor "twitches".

Recalibration does not fix the bad motor. I inspected all wiring and they look solid.

Could I have a broken ESC?

Very best,

Clark

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Replies

  • T3
    You can just move your wires around to another ESC or motor and see if the problem moves or stays. It's always good to have spare parts.
    Good luck,
    Richard
  • A regular beeping from the ESC and corresponding motor twitch usually means that the thin white signal wire  has broken or become disconnected.   If the ESC took a hard hit, then it could have sustained internal damage.

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