E-flite UMX MiG 15 DF BNF - Manual (Page 14)

14
EN
Troubleshooting Guide
Problem Possible Cause Solution
Aircraft will not
respond to throttle
but responds to other
controls Throttle stick and/or throttle trim too high Reset controls with throttle stick and throttle
trim at lowest setting
Throttle channel is reversed Reverse throttle channel on transmitter
Motor disconnected from receiver Open fuselage and make sure motor is
connected to the receiver
Extra motor noise or
extra vibration Damaged rotor or motor Replace damaged parts
Rotor out of balance Balance or replace the rotor
Reduced fl ight time
or aircraft underpow-
ered Flight battery charge is low Completely recharge fl ight battery
Flight battery damaged Replace fl ight battery and follow fl ight battery
instructions
Flight conditions may be too cold Make sure battery is warm before use
Battery capacity too low for fl ight conditions Replace battery or use a larger capacity battery
LED on receiver
fl ashes and aircraft
will not bind to
transmitter (during
binding) Transmitter too near aircraft during binding
process Power off transmitter, move transmitter a larger
distance from aircraft, disconnect and recon-
nect fl ight battery to aircraft and follow binding
instructions
Bind switch or button not held long enough
during bind process Power off transmitter and repeat bind process.
Hold transmitter bind button or switch until
receiver is bound
LED on receiver
fl ashes rapidly and
aircraft will not re-
spond to transmitter
(after binding) Less than a 5-second wait between fi rst
powering on transmitter and connecting
fl ight battery to aircraft Leaving transmitter on, disconnect and recon-
nect fl ight battery to aircraft
Aircraft bound to different model memory
(ModelMatch
™ radios only)
Select correct model memory on transmitter
and disconnect and reconnect fl ight battery to
aircraft
Flight battery/transmitter battery charge is
too low Replace/recharge batteries
Problem Possible Cause Solution
Control surfaces not
at neutral position
when transmitter
controls are at neutral Control surfaces may not have been
mechanically centered from factory Center control surfaces mechanically by
adjusting the U-bends on control linkages
Aircraft was moved after the fl ight battery
was connected and before sensors
initialized Disconnect and reconnect the fl ight battery
while keeping the aircraft still for 5 seconds
Model fl ies incon-
sistently from fl ight
to fl ight Trims are moved too far from neutral
position Neutralize trims and mechanically adjust
linkages to center control surfaces
Controls oscillate in
fl ight (model rapidly
jumps or moves) Rotor is unbalanced, causing excessive
vibration Remove rotor and motor. Check motor shaft for
straightness and replace rotor if damaged
AS3X