Instructions
F
Manual  -  Bae  Hawk                   
www.modster.at   23
Problem Possible Cause Solution
Aircraft 
responds to other 
controls but not 
the throttle.
•  ESC is not armed.
•  Throttle channel is reversed.
•  Lower throttle stick and 
throttle trim to lowest settings
•  Reverse throttle channel on 
transmitter.
Excessive vibration 
or propeller noise.
•  Damaged spinner, propeller, 
motor or motor mount.
•  Loose propeller & spinner parts. 
•  Propellor installed backwards.
•  Replace damaged parts.
•  Tighten parts for propeller 
adapter, propeller and spinner.
•  Remove and install propeller 
correctly.
Reduced flight 
time or aircraft 
underpowered.
•  Flight battery charge is low. 
•  Propeller installed backward
•  Flight battery damaged.
•  Recharge flight battery.
•  Replace flight battery and 
follow battery instructions.
Control surfaces 
unresponsive or 
sluggish.
•  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 are 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 flight battery.
Troubleshooting Guide










