EN
24
®
Troubleshooting Guide (SAFE
®
Plus)
Problem
Possible Cause
Solution
Controls oscillate in fl ight,
(Aircraft rapidly jumps or
moves)
Propeller is unbalanced, causing
excessive vibration
Remove propeller and rebalance or
replace it if damaged
The prop screw is too loose,
causing vibration
Tighten the prop screw
Aircraft does not connect
to transmitter after battery
is connected
Aircraft is not upright and immobile
after battery is connected
Keep the Aircraft upright and immobile
for up to 90 seconds after connecting
the battery
Ailerons neutralize when aircraft is
connected to transmitter but controls will
not function until it established GPS lock
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
Transmitter may not be compatible
with Spektrum DSMX/DSM2
technology
Use a genuine Spektrum DSMX/DSM2
transmitter
Aircraft or transmitter is too close to
large metal object, wireless source
or another transmitter
Move aircraft and transmitter to another
location and attempt linking again
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
AutoLand was not deactivated after
landing
Deactivate AutoLand by pressing the AL/
HP button or changing fl ight modes and
lower throttle
Extra propeller noise
or extra vibration
Propeller, spinner or motor is
unbalanced, causing excessive
vibration
Balance parts or replace it if damaged
Prop screw is too loose
Tighten the prop screw
Reduced fl ight
time or aircraft
underpowered
Flight battery charge is low
Completely recharge fl ight battery
Propeller installed backwards
Install propeller with numbers facing
forward
Flight battery damaged or old.
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
