Hello! I have this controller with lcd :
a.aliexpress.com
with 250w rear drive motor. Well I do not know where to start, because the motor works only when I do not pedalling also it's enough to start the motor only to touch the pas sensor of one of the magnets. I can also change the way it's spins(slower of faster) from lcd. I have checked the pas wiring, there are only 3 wires, seems ok . I do not know what to do. The error on the lcd is 07. Means motor problem...
please help

35.36US $ 54% OFF|Electric Bicycle Accessories 24V/48V Electric Bike 250W/350W Brushless DC Motor Controller For Electric Bicycle E bike Scooter|Scooter Parts & Accessories| - AliExpress
Smarter Shopping, Better Living! Aliexpress.com
please help