Problem
Possible Cause
Solution
Aircraft will not respond
to throttle but responds
to other controls
ESC did not arm because throttle stick and/
or throttle trim too high
Lower throttle stick and throttle trim to low-
est setting
Throttle channel is reversed
Reverse throttle channel on transmitter
Motor disconnected from ESC
Remove wing from fuselage and make sure
motor is connected to the ESC
Extra propeller noise or
extra vibration
Damaged propeller, spinner or motor
Replace damaged parts
Prop nut is too loose
Tighten the prop nut
Prop is out of balance
Remove and balance propeller, or replace
with a balanced propeller.
Reduced fl ight time or
aircraft underpowered
Flight battery charge is low
Completely recharge fl ight battery
Propeller installed backwards
Install propeller properly
Flight battery damaged
Replace fl ight battery and follow fl ight battery
instructions
Flight battery is 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
reconnect 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 pro-
cess. Hold transmitter bind button or switch
until receiver is bound
Control surface does
not move
Control surface, control horn, linkage or
servo damage
Replace or repair damaged parts and adjust
controls
Wire damaged or connections loose
Do a check of wires and connections, con-
nect or replace as needed
Flight battery charge is low
Fully recharge fl ight battery
Control linkage does not move freely
Make sure control linkage moves freely
Controls reversed
Transmitter settings reversed
Adjust controls on transmitter appropriately
Motor power quickly
decreases and in-
creases then motor
loses power
Battery voltage is down to the point of
receiver/ESC Low Voltage Cutoff (LVC)
Recharge fl ight battery or replace battery that
is no longer performing
Motor/ESC is not armed
after landing
Over Current Protection (OCP) stops the
motor when the transmitter throttle is set
high and the propeller cannot turn
Fully lower throttle and throttle trim to arm
ESC
Troubleshooting Guide
