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)
Loose 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)
Looseness 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)
Clamp after welding or
reconnect
；
4)
Repair at the store
；
5)
Check fuse, or stat the same
after replacement, repair by
professional
；
3
Short driving
mileage after
charging
1)
Low tyre pressure
；
2)
Insufficient charging or charger
malfunction
；
3)
Battery aging or damage
；
4)
Many 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)
Try 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)
Internal 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
