15. Troubleshooting
Even though the model and the remote control system were built to the latest available technology, there can still be
malfunctions or faults. This is why we would like to show you how to remove possible faults.
Problem
Transmitter doesn't respond.
The transmitter turns off straight away of after
a short while.
The system has only a low range.
The model doesn't respond.
The motor does not start.
Servos hum or buzz.
A servo isn't working.
Remedy
• Check batteries or rechargeable batteries of transmitter.
• Check polarity of batteries or rechargeable batteries.
• Check function switch.
• Check batteries or rechargeable batteries of transmitter or re-
place them.
• Check batteries or rechargeable batteries of transmitter and
model.
• Check receiver antenna for damages and electrical continuity.
• Try placing the receiver aerial differently in the model.
• Check flight battery or connector in the model.
• Check connectors on the receiver.
• Bind the receiver to the transmitter again.
• Check safety buttons.
• Check flight battery.
• Check motor or controller.
• Check cabling in the model for damage.
• Check the rudder linkages for smooth operation.
• Test the servo without linkage.
• Replace the servo.
• Check the plug-in contacts at the receiver.
• Check the servo at another receiver output.
• Connect a different servo to the defective receiver output for
test purposes.
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