Infineon CITYJAM Pro User Manual page 25

21 Common Failures and Solutions
3) The display board is working but the motor doesn't work Reason analysis and
Solutions
A.The brake handle is damaged
d. Pull out the socket of the brake handle (normally open type brake handle) to see if the motor works, if it
does, then it is the failure of brake handle, replace it.
B. The speed regulating steering handle is damaged.
e. Check the speed regulating steering handle and motor hall switch to see if they are short- circuited or not.
Short circuit is easier to happen in wet weather and will cause continuous damage of the controller.
C.The motor is damaged.
f. Check the motor hall switch and turning handles signal. If the controller shell gets very hot when turned on, it
is usually caused by the short-circuit of the internal power tube of the controller, then cut off the power and
replace it.
4) Charging failure
Reason analysis and Solutions
A.The battery charging port is loose.
c.Change a good charging port.
B.The connection of the charger plug is not well.
d. Change a good changer connector.
3)Can't turn on the scooter
Reason analysis and Solutions
A.The battery is dead.
b. Charge the scooter for 1-2 hours according to the user manual.
B. The power button is out of order.
b. Check the power button to see if it is stuck or not.
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