ENGWE-BIKES SJB-1, Руководство по эксплуатации и обслуживанию

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Trouble Shooting
Failure Phenomena Causes of Failure Solutions

Can not adjust the
speed

Speed is less than
10km/h
 Battery’s voltage is too
low

Throttle governing bar is
damaged

Poor contact of the
controlling line

Spring failure or being
locked

Fully charge the battery

Replace the throttle
governing bar

Replace the spring

e-
Bike’s mileage is
obviously inadequate
after fully charged

Inadequate tire pressure

Failure of charger

The battery cannot be
fully charged

Failure of controller

Battery aging or battery
damaged

e-Bike has not been well
assembled

Too much upgrade road

Strong wind

Bad road

Overweight

Too many braking times

Temperature is too low

Inflate tire with
appropriate air pressure

Repair the charger

Examine and repair the
controller

Replace the controller

Replace the battery

Re-adjust the e-Bike

Boost the e-Bike by
manpower

Warm the battery above
0
℃
(32
℉
)

Wheel hub stop running
after switching on the
power

The connection of
battery is loosen

Poor contact of
controlling line

The connection of wheel
hub is loose or damaged

The protective board of
the battery is broken

Re-connect the battery

Replace the connection
line
 Replace the battery’s
protective board with a
new one

Can not turn on the e-
bike


The Battery is out of
power

Battery damaged

Fully charge the battery

Replace the battery
As one or more causes of failure might lead to the failure phenomenon, you should find
out the true cause(s) and then take the appropriate solution(s) to rectify the problem. In
case of doubt, please consult a qualified technician for service, repairs or maintenance.
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