E-flite UMX Beast 3D BNF EFLU4850 ユーザーズマニュアル

11

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 propeller noise 
or extra vibration

Damaged propeller, spinner or motor

Replace damaged parts

Prop screw is too loose

Tighten the prop screw

Reduced fl ight time 
or aircraft underpow-
ered

Flight battery charge is low

Completely recharge fl ight battery

Propeller installed backwards

Install propeller with numbers facing forward

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 reconn-
ect 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
respond to transmit-
ter (after binding)

Less than a 5-second wait between fi rst 
powering on transmitter and connecting 
fl ight battery to aircraft

Leave transmitter on, disconnect and reconnect 
fl ight battery to aircraft

Aircraft bound to different model memory 
(ModelMatch

TM

 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

Control surfaces are 
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 
adjusitng the U-bends on control linkages

Aircraft was moved after the fl ight battery 
was connected and before sensors 
initialized

Disconnect fl ight battery and reconnect while 
being sure model does not move 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