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How many wires does your pas controller have? How many magnets? Does pedaling backwards work? Other threads talked about PAS extensively. Sometimes, what you need is only a cheap pas sensor from ebay :)

hi guys, i have brain power controller and s866 lcd. my problem is that i hear the motor working when i pedal but it is very weak compared to the old controller. also when i put it on walk mode (6km)it just starts making a noise but it does not move. i have checked the motor hall sensors and the...