Another reventon pro
 

My guess is its bust, have a fault on phase A (blue) its not putting out.
When connecting it to motor on power it seems to pull down power a tiny amount, B and C will turn the motor if i manualy start it, tried everything except reflashing firmware.
Any ideas except "buy a new speedo".
Tried different motor and everything else i can possibly think of except firmware.

I know you said everything. But did this include a new sensor lead?

To update i stripped it down and the mosfets had loose balls of solder lingering around them, over heating or just burned out but i have never smelled burning so maybe repairable not sure.

Pugs on here fixes ESCs. He doesn't rate the reventon pros when he's had them apart. They use very cheap components. Apparently they're difficult to repair unlike lots of other manufacturers which are based on Hobbywing designs and use better more reliable components.

Send him a PM and he'll have a go at it.

After seeing numerous people at our club have failures I wouldn't touch one with a barge pole.

ok will do.

cheers