11
SCT
MT
EN
Problem
Possible Cause
Solution
Short Run Time
• Battery damaged/not charged
• Motor dirty or brushes worn
• Check/change battery
• Check/clean/replace
Sluggish Action
• Motor dirty or brushes worn
• Bind in drivetrain
• Vehicle battery is not charged
• Check/clean/replace
• Clean/adjust
• Replace/recharge
Controls Reversed
• ST. REV or TH. REV
• Change switch position
Motor/ESC overheat
• Over-geared for the driving environment
• Install smaller pinion
Doesn’t Operate
• Transmitter batteries low
• Transmitter powered off
• ESC powered off
• Vehicle battery is not charged
• Replace/recharge
• Power On
• Power On
• Replace/recharge
Poor Range
• Transmitter batteries low
• Receiver antenna damaged
• Replace/recharge
• Check/repair/replace
The system will not
connect
• Transmitter and receiver too near each other
• Transmitter and receiver too near large
metal objects (vehicles, etc.)
• Receiver accidentally put in bind mode so
receiver is no longer bound
• Move transmitter 8–12 feet (2.4–3.6m)
from receiver
• Move away from large metal objects (vehicles, etc.)
• 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
• Contact Horizon Product Support
• Make sure receiver antenna is in an antenna tube
and is above vehicle
The receiver quits
responding during
operation
• Low battery voltage
• Loose or damaged wires or connectors
between battery and receiver
• Completely recharge battery
• 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
TROUBLESHOOTING GUIDE
BINDING
Binding is the process of programming the receiver to recognize
the GUID (Globally Unique Identifi er) code of a single specifi c
transmitter. The STX2
®
and SRX200 receiver are bound at the
factory. If you need to rebind, follow the instructions below.
1. Insert the Bind Plug in the BIND port on the receiver.
2. Connect a fully charged battery pack to the ESC.
3. Power on the ESC. The red LED flashes, indicating the receiver
is in bind mode.
4. Center the ST TRIM and TH TRIM dials on the transmitter.
5. Turn the steering wheel to Full Right. Power the transmitter on
while holding the steering wheel to the Right.
6. Release the steering wheel when the receiver LED stops
flashing.
7. Remove the Bind Plug, then power off the receiver to save the
settings.
8. Power off the transmitter.
9. Remove the bind plug and store it in a convenient place.
You must rebind when:
• Different failsafe positions are desired e.g., when throttle or
steering reversing has been changed.
• Binding the receiver to a different transmitter.
FAILSAFE
In the unlikely event that the radio link is lost during use, the
receiver will drive the servos to their preprogrammed failsafe
positions (normally full brakes and straight steering). If the
receiver is turned on prior to turning on the transmitter, the
receiver will enter failsafe mode, driving the servos to their
preset failsafe positions. When the transmitter is turned on,
normal control is resumed. Failsafe servo positions are set
during binding (see binding a receiver above).
