E-flite RTB 430 mm EFLU4950 用户手册

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Horizon Hobby, Inc. (“Horizon”) warrants to the 
original purchaser that the product purchased (the 
“Product”) will be free from defects in materials and 
workmanship at the date of purchase.

This warranty is not transferable and does not cover 
(i) cosmetic damage, (ii) damage due to acts of God, 
accident, misuse, abuse, negligence, commercial 
use, or due to improper use, installation, operation 
or maintenance, (iii) modifi cation of or to any part of 
the Product, (iv) attempted service by anyone other 
than a Horizon Hobby authorized service center, (v) 
Product not purchased from an authorized Horizon 
dealer, or (vi) Product not compliant with applicable 
technical regulations. 

OTHER THAN THE EXPRESS WARRANTY ABOVE, 
HORIZON MAKES NO OTHER WARRANTY OR 
REPRESENTATION, AND HEREBY DISCLAIMS ANY 
AND ALL IMPLIED WARRANTIES, INCLUDING, 
WITHOUT LIMITATION, THE IMPLIED WARRANTIES 
OF NON-INFRINGEMENT, MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE. THE 
PURCHASER ACKNOWLEDGES THAT THEY ALONE 
HAVE DETERMINED THAT THE PRODUCT WILL 
SUITABLY MEET THE REQUIREMENTS OF THE 
PURCHASER’S INTENDED USE. 

Horizon’s sole obligation and purchaser’s sole and 
exclusive remedy shall be that Horizon will, at its 
option, either (i) service, or (ii) replace, any Product 
determined by Horizon to be defective. Horizon 
reserves the right to inspect any and all Product(s) 

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

Leaving transmitter on, disconnect and 
reconnect 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

Transmitter may have been bound to a 
different model (or with a different DSM 
Protocol)

Select the right transmitter or bind to the 
new one

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

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 loses power

Damage to motor or power components

Do a check of motor and power components 
for damage (replace as needed)

Motor power quickly 
decreases and in-
creases then motor 
loses power

Battery power 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

Servo locks or freezes 
at full travel

Travel adjust value is set above 100%, 
overdriving the servo

Set Travel adjust to 100% or less and/or set 
sub-trims to Zero and adjust linkages 
mechanically