19
SPEKTRUM DX4S • TRANSMITTER INSTRUCTION MANUAL
EN
TROUBLESHOOTING GUIDE
Problem
Possible Cause
Solution
The system will
not connect
Transmitter and receiver too near each other
Move transmitter 8 to 12 feet (2.4 to 3.6m) from
receiver
Transmitter and receiver too near large metal
objects (vehicles, etc.)
Move away from large metal objects (vehicles, etc.)
Selected model is not bound in transmitter
Make sure correct model memory is selected and that
transmitter is bound to the model
Transmitter accidentally put in bind mode so
receiver is no longer bound
Rebind transmitter and receiver
The receiver goes
into failsafe mode a
short distance away
from the transmitter
Check the receiver antenna to be sure it is not
cut or damaged
Replace or contact Horizon Product Support
Make sure receiver antenna is in an antenna tube and
is above vehicle
Receiver quits
responding during
operation
Low battery voltage
Completely recharge battery
Loose or damaged wires or connectors between
battery and receiver
Do a check of the wires and connection between
battery and receiver. Repair or replace wires and/or
connectors
Receiver loses its
bind
Transmitter accidentally put in bind mode, ending
bind to receiver
Bind transmitter to receiver
The front wheels
oscillate
The steering gain is set too high
Turn down the steering gain
The front wheels turn
the wrong way when
the car slides/rotates
The steering channel was reversed after
calibration
Rebind and calibrate
The throttle does not
reduce when the car
slides/rotates
The throttle channel was reversed after calibration Rebind and calibrate
