One rotor spins when battery is plugged in even if power switch is off
After crashing the helicopter, besides a cracked cowling, the only damage I can find is the lower rotor starts to spin as soon as the battery is plugged in, regardless of whether the on/off switch is in the OFF position. If the lower rotor is unplugged from the circuit board, the rest of the motors respond normally to the on/off switch and input from the R/C controller. Any ideas on what the problem is?
Toys - xheli - 9053 Outdoor Volitation Metal Helicopter
Answers & Comments
When the crash happened, was the throttle gimble on the transmitter left at a
throttle up position for any length of time? If it was, it might have burned the
speed control or electronic gyro for the bottom rotor blades. Replacement
of PC Board might be a fix.