User Manual

13
EN
Troubleshooting Guide
Problem Possible Cause Solution
Helicopter will not bind
to the transmitter
(during binding)
Low fl ight battery or transmitter battery voltage Fully charge or replace the fl ight battery and/or transmitter batteries
receiver is not in bind mode Make sure the bind plug is connected to the receiver BND/DAT port
Transmitter is not in bind mode
Power on the transmitter while holding the Trainer/Bind switch. Hold the Trainer/
Bind switch until binding is complete
Transmitter too close to the helicopter during bind-
ing process
Power off the transmitter. Move the transmitter further away from the helicopter.
Disconnect and reconnect the fl ight battery to the helicopter and follow binding in-
structions
Helicopter will not link to the transmitter
(after binding)
Helicopter is bound to a different model memory
(ModelMatch™ radios only)
Disconnect the fl ight battery. Select the correct model memory on the transmitter
Reconnect the fl ight battery
Flight battery/Transmitter battery charge is too low Replace or recharge batteries
SPM4649T will not initialize
The helicopter was moved during initialization Lay the helicopter on its side during initialization if windy
The transmitter is powered off Power on the transmitter
Controls are not centered Center elevator, aileron and rudder controls. Make sure the throttle is at idle
Helicopter will not respond to the throttle
but responds to other controls
Throttle not at idle and/or throttle trim is too high Lower the throttle stick and lower the throttle trim
The transmitter is not in normal mode or throttle hold
is on
Make sure the transmitter is in normal mode and throttle hold is off
The motor is not connected to the ESC or the mo-
tor wires are damaged
Connect the motor wires to the ESC and check motor wires for damage
Flight battery charge is too low Replace or recharge fl ight battery
Throttle channel is reversed Reverse the throttle channel on the transmitter
Helicopter power is lacking
Flight battery has low voltage Fully charge the fl ight battery
Flight battery is old or damaged Replace the fl ight battery
Flight battery cells are unbalanced Fully charge the fl ight battery, allowing the charger time to balance the cells
Excessive current is being drawn through the BEC Check all servos and the helicopter motor for damage
Tail drive belt tension is not correct See "Checking Tail Drive Belt Tension" in this manual
Helicopter will not lift off
Main rotor head is not spinning in the correct direction
Make sure the main rotor head is spinning clockwise. Refer to the motor control
test
Transmitter settings are not correct Check throttle and pitch curve settings and pitch control direction
Flight battery has low voltage Fully charge the fl ight battery
Main rotor blades are installed backwards Install the main rotor blades with the thicker side as the leading edge
The helicopter tail spins out of control
Rudder control and/or sensor direction reversed
Make sure the rudder control and the rudder sensor are operating in the correct
direction
Tail servo is damaged Check the rudder servo for damage and replace if necessary
Inadequate control arm throw Check the rudder control arm for adequate travel and adjust if necessary
Tail belt is too loose Make sure the tail drive belt tension is adjusted correctly
The helicopter wobbles in fl ight
Cyclic gain is too high Please review the Advanced Settings - Gain Adjustments section
Headspeed is too low
Increase the helicopter's head speed via your transmitter settings and/or using a
freshly charged fl ight pack
Dampers are worn Replace the main rotor head dampers