Manual

6. Malfunction & Troubleshooting
No
Malfunction
description
Cause of malfunction Troubleshooting
1
Speed shifting
not functional, or
low velocity of
high shift
Under voltage in battery
；
1) L
oose connection of magnetic steel in
speed shifting bar；
2) Spring chucked or failure in the bar
；
1) Charge the battery to fullest
；
2) Clamp it tight after welding；
3) Replace the spring by supplier；
2
Motor not work
after cable
connection
1) Affect power disconnection by braking
knob not return to normal position；
2) Loose connection to battery；
3) L
ooseness in magnetic steel of shifting
bar，loose connection；
4) Loose motor connection or broken；
5) Fuse is gone；
1) Push the knob outwards
；
2) Reconnect in repair；
3) C
lamp after welding or
reconnect；
4) Repair at the store；
5) Check fus
e, or stat the same
after replacement, repair by
professional
；
3
Short driving
mileage after
charging
1) Low tyre pressure
；
2) I
nsufficient charging or charger
malfunction；
3) Battery aging or damage；
4) M
any ramps, strong against wind,
frequent braking & startup, heavy load；
1) Charge it full
；
2) Charge full or check charger’s
plug；
3) Replace the battery；
4) T
ry to reduce the chance of
braking and mentioned
situation
；
4
Charger not
working
1) Charger socket split off or loosened
；
2) Battery fuse broken；
3) Battery connection broke off
；
1) Fasten socket and connection
；
2) Replace the fuse；
3) Weld connection
；
5 others
1) When you met situations you cannot
eliminate by using
above instructions or
cannot determine；
2) I
nternal broken in motor, controller,
charger, power supply and battery unit
；
When you met mentioned situation
above, please go to the supplier
or repair station, do not open the
component, otherwise will
invalid the warranty.
6
Powerless in
motor and make
ticking noises
Low power in battery
Charge it immediately
PRODUCE BY
WUXI XUFENG ELECTRIC BICYCLE CO. LTD
143 Xixian Road
New District – Wuxi
CHINA