The motor stops suddenly
during operation.
The motor stops or starts
suddenly, does not function
correctly.
The motor stops or cogs if it
is accelerated too fast.
The input signal is inter-
rupted.
Undervoltage protection has
started.
Overheating protection has
started.
The motor is blocked.
Some connections are loose.
Electromagnetic inter-
ferences.
The battery's discharging
current is too low.
The "punch" setting of
the speed controller is too
aggressive.
The gear ratio is unfavou-
rable.
- -
Check sender and receiver.
Check the connection of
channel 2 of the receiver
(accelerator/brake signal) to
the speed controller.
Replace the battery.
Check the temperature of
the speed controller.
Check the rotating parts
of the speed controller for
foreign matter.
Check all plug connections.
Reset the speed controller to
the default settings. Move to
another terrain to operate
the motor on, if necessary.
Use a battery with high
quality.
Program the start-up behavi-
our to be softer.
Choose a motor with a lower
rotation/voltage or use a
smaller motor pinion.