BLH Vusion 250 v2 Manual

14
EN
Troubleshooting Guide
WARNING: Remove the propellers from the motors prior to performing any troubleshooting or maintenance.
Failure to do so may cause serious injury if the motors start unexpectedly.
Problem Possible Cause Solution
Quadcopter control response is
inconsistent or requires extra
trim to neutralize movement
Quadcopter not initialized on a level surface
Disconnect the flight battery, center the control trim and
re-initialize the quadcopter
Battery not correctly placed
Adjust battery position so quadcopter balances in the
center of the frame
Quadcopter will not respond
to throttle
Throttle too high and/or throttle trim is too high
Reset controls with the throttle stick and throttle trim at the
lowest setting
Quadcopter moved during initialization
Disconnect the flight battery and re-initialize the
quadcopter while keeping the quadcopter from moving
Throttle channel is reversed
Disconnect flight battery, reverse the throttle channel on
the transmitter, recconnect flight battery
Travel adjust settings not correct
Refer to the transmitter setup table for correct travel adjust
settings.
Quadcopter does not function
and smells burnt after
connecting the fl ight battery
Flight battery connected with the wrong polarity
Replace the power distribution board. Connect the flight
battery noting proper polarity
Quadcopter has
reduced fl ight time or is
underpowered
Flight battery charge is low Completely recharge the flight battery
Inadequate power to flight battery charger Use a different power source for the charger
Flight battery is damaged
Replace the flight battery and follow the flight battery
instructions
Flight conditions might be too cold
Make sure the battery is warm (room temperature) before
use
Crashes immediately upon
lift-off
Propellers in wrong locations or incorrect flight
mode selected
Ensure propeller direction and motor direction are correct
Diffi culty binding
Bind button not pressed while
powering on the quadcopter
Power off quadcopter and repeat bind process
Transmitter too near aircraft during binding
process
Power off the transmitter. Move the transmitter a larger
distance from the aircraft or shield the aircraft from the
transmitter using your body. Disconnect and reconnect
the flight battery to the quadcopter. Follow the binding
instructions
Quadcopter or transmitter is too close to
large metal object, wireless source or another
transmitter
Move quadcopter and transmitter to another location and
attempt binding again
Diffi culty connecting
(after binding)
Transmitter not powered on before the
quadcopter
Power the quadcopter off. Power on the transmitter first
and then the quadcopter
Less than a 5-second wait between first
powering on the transmitter and connecting the
flight battery to the quadcopter
Leave the transmitter powered on. Disconnect and
reconnect the flight battery to the quadcopter
Flight battery or transmitter battery charge is
too low
Replace or recharge batteries
Quadcopter or transmitter is too close to
large metal object, wireless source or another
transmitter
Move quadcopter and transmitter to another location and
attempt connecting again
Static in FPV feed
Interference on chosen channel Change the video transmitter and receiver channel
Flying too close to 5.8 GHz WiFi source Remove WiFi source or move to a different flying area