Strange behevior on a MMM

[molak]

Originally Posted by Arct1k

There is no way the ESC can make ring tones without a motor being plugged in...

The tones are made by energizing the motor coils...

Does the motor run?

Sparks are normal - Its the capacitor charging

I have another e-revo brushless, the spark are stronger than normal and there´s a constant current draw.

I know that there is no way a MMM could do ringing tones without motor , but... do you want a video ?