Something is wrong

[STJzzz]

All the electronic working well except for the motor ,sometime i push the trottle, the motor will spin, after that i disconnect the motor connect back again, the motor not spinning anymore , whats is the problem ? the soldering ?

[dt2133]

a. Solder problem.
b. Wire broken (inside the insulation so you cannot see it).
c. ESC problem (malfunction)
d. Receiver problem (throttle output)

[TWE75]

Try using your reciever and esc on other plane or heli whatever . If it works then your reciever and esc ok , if no then use your reciever on another setup if reciever ok then is esc problem . But if both esc and receiever used on other setup is ok then it means it could be your soldering or wire broken .