Troubleshooting guide – E-flite Carbon-Z Yak 54 PNP User Manual

Page 15

Troubleshooting Guide

Problem

Possible Cause

Solution

Aircraft will not respond to throttle
but responds to other controls

• ESC is not armed.
• Throttle channel is reversed

• Lower throttle stick and throttle trim

to lowest settings.

• Reverse throttle channel on

transmitter

Extra propeller noise or extra
vibration

• Damaged spinner, propeller,

motor or motor mount

• Loose propeller and spinner parts

• Propeller installed backwards

• Replace damaged parts

• Tighten parts for propeller adapter,

propeller and spinner

• Remove and install propeller

correctly

Reduced ﬂ ight time or aircraft
underpowered

• Flight battery charge is low
• Propeller installed backwards
• Flight battery damaged

• Completely recharge ﬂ ight battery
• Remove and install propeller

correctly

• Replace ﬂ ight battery and obey

ﬂ ight battery instructions

LED on receiver ﬂ ashes quickly
with bind plug installed and
aircraft cannot be controlled by
transmitter

• Transmitter too close to aircraft

• Transmitter bound to another

aircraft

• Batteries in transmitter low

• Move powered transmitter a few

feet from aircraft, disconnect and
connect ﬂ ight battery to aircraft and
re-bind.

• Bind transmitter to aircraft receiver

• Replace transmitter batteries

Control surface does not move,
or is slow to respond to control
inputs.

• Control surface, control horn,

linkage or servo damage

• Wire damaged or connections

loose

• Replace or repair damaged parts

and adjust controls

• Do a check of connections for

loose wiring

Controls reversed

• Channels need to be reversed in

the transmitter

• Do the Control Direction Test and

adjust controls for aircraft and
transmitter

Motor loses power
Motor power pulses then motor
loses power

• Damage to motor, or battery
• Loss of power to aircraft

• ESC uses default soft Low Voltage

Cutoff (LVC)

• Do a check of batteries, transmitter,

receiver, ESC, motor and wiring for
damage (replace as needed)

• Land aircraft immediately and

Recharge ﬂ ight battery

LED on receiver ﬂ ashes slowly

• Power lost to receiver

• Check connection from ESC to

receiver

• Check servos for damage
• Check linkages for binding

FREE FLIGHT
1. I will not launch my model aircraft unless I am

at least 100 feet downwind of spectators and

automobile

parking.

2. I will not fl y my model aircraft unless the launch

area is clear of all individuals except my

mechanic, offi cials, and other fl iers.

3. I will use an effective device to extinguish any

fuse on the model aircraft after the fuse has

completed its function.

CONTROL LINE
1. I will subject my complete control system

(including the safety thong where applicable) to

an inspection and pull test prior to flying. The

pull test will be in accordance with the current

Competition Regulations for the applicable model

aircraft category. Model aircraft not fitting a

specific category shall use those pull-test

requirements as indicated for Control Line

Precision

Aerobatics.

2. I will ensure that my flying area is clear of all

utility wires or poles and I will not fly a model

aircraft closer than 50 feet to any aboveground

electric utility lines.

3. I will ensure that my fl ying area is clear of all

nonessential participants and spectators before

permitting my engine to be started.

Please see your local or regional modeling

association’s guidelines for proper, safe operation of

your model aircraft.