9
8.
Troubleshooting Table:
Symptom
Cause
Action to take
No motor and servo functions
Wiring problem
Check wire and connectors
Wrong polarity when connecting the
BEC wire to the receiver
Correct the polarity when connecting
the BEC wire to the receiver
Transmitter, Receiver or Battery
defective
Replace the components one by one
Speed control defective
Send for repair
No motor function, but servo is
working
Wiring problem
Check wire and connectors
Sensor wiring defective/missing
Change other wire
Motor defective
Change other motor
Speed control defective
Send for repair
While accelerating, motor stutters
Sensor wiring defective
Replace the wire
Motor or Sensor board defective
Change other motor or sensor board
Power Capacitor failure
Replace the power capacitor
Radio interference
Change the components location
Speed control defective
Send for repair
Motor runs at constant slow speed
and never stops
Transmitter settings changed after
setup
Repeat set up procedure
Humidity/water in speed control
Dry the speed control
Radio Interference
Transmitter batteries empty
Replace transmitter batteries
Bad battery connection
Check wire connection
Receiver, transmitter or servo
defective
Replace the components one by one
Receiver or antenna too close to
power wires of motor and battery
Change the components location
