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16. Troubleshooting
Even though the model and the remote control system were built with the latest available technology, there can still
be malfunctions or errors. For this reason, we would like to give you some information on how to deal with possible
problems.
Problem
Remedy
Transmitter doesn’t respond.
• Check the batteries in the transmitter.
• Check the polarity of the batteries in the transmitter.
• Check on/off switch.
LED in the transmitter starts to flash.
• Check or replace the batteries in the transmitter.
Model does not react, the LEDs in the
quadrocopter flash slowly.
• Check function of the remote control transmitter.
• Perform activation of the quadrocopter again.
Propellers do not start.
• Check flight battery charging state.
• Use different flight battery for test purposes.
Quadrocopter tips to the side when
starting.
• Switch on the quadrocopter again and do not move the model while
doing so.
• Check ease of movement of the drive motors.
Quadrocopter shows too little perfor-
mance or too short flight times.
• Check the flight battery charging state.
• Replace flight battery.
The quadrocopter always flies in one
direction.
• Adjust transmitter trimming.
• Avoid difficult flight conditions (wind or draft).
Quadrocopter reacts very slowly to the
control commands.
• Switch to expert mode.
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