Electric Bicycle Manual
25
7. Troubleshoot
S
/
N
Failure
Cause
Eliminating methods
1
Failed speed
change or too
low maximum
velocity
(
Ⅰ
) Low battery voltage
(
Ⅱ
) Bad governor handle
(
Ⅲ
) Bad controller
(
Ⅰ
) Charge the battery
fully
(
Ⅱ
) Replace the
governor handle,
controller
2
Turn on the
power supply,
but the motor
does not work
(
Ⅰ
) Bad governor handle
(
Ⅱ
) Bad electric door lock
and contact point
(
Ⅲ
) Bad controller
(
Ⅰ
) Replace the
governor handle,
controller
(
Ⅱ
)Re-weld the contact
part
3
Inadequate
mileage of
one-time
charging
continuation line
(
Ⅰ
)Tire lacks of air pressure
(
Ⅱ
) Inadequate charging or
failed charger
(
Ⅲ
) The battery has been
damaged or its life has
expired
(
Ⅳ
) Frequent braking startup,
overloading
(
Ⅰ
)Tire is full of air
(
Ⅱ
)The battery is
adequate or replace
the charger
(
Ⅲ
)Replace the battery
4 The charger is
not charged
(
Ⅰ
) The charger wiring is
loose or damaged
(
Ⅱ
) The battery weld line falls
off or is damaged
(
Ⅰ
)Weld the connecting
line
or replace
(
Ⅱ
)Weld the connecting
line
or replace
5
The booster has
no power
assisting
(
Ⅰ
) The induced cartridge has
poor contact or is damaged
(
Ⅱ
) The booster wiring is bad
or damaged
(
Ⅰ
) Adjust the induced
cartridge or replace
(
Ⅱ
)Re-connect or
replace