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Troubleshooting
We fully understand your feelings when you meet a problem with the bike. Contacting us on the
website where you bought the bike and telling us your problem in detail with some pictures and
videos will be the fastest and easiest way to help you solve the problem. Please don't forget to
leave your order number to us for reference.
The following are some assist tips for electrical problems:
The display can not light up
Please fully charge the battery (6-8 hours). The LED on the charger should be green color when the
battery is full charged.
If it still doesn’t work, please check the wires and battery, please make sure the connections are not
loose, and the battery installs in place, then please light up the display in the correct order (light up the
power button on the battery,press the “6km” button, and hold).
If it still doesn’t work, we need to get a voltmeter, and do some testing:
First,please light up the power button, and test the battery output voltage (Figure. 7-1). If the voltage is
“0”, it means there is something wrong with the battery output plug, cell, or fuse. Please take a picture
or a video to show your testing result, and then send it to us. The customer service department will
give you a solution. If the battery voltage is not “0”, but less than 32V, please full charge the battery
(6-8 hours), then test it again; if the battery voltage is between 32v-42v, but the display can not be light
up, it means the battery is in good condition, we need to test the other two plugs.
Second, please open the controller box, and find the power wire (black and red color) that connecting
the battery and controller (Figure. 7-2). Please test the power wire’s voltage. If it is “0”, it means the
power wire needs to replace, please take pictures, and send the pics to us. If the voltage is the same as
the battery, there's no problem with the power wire. We need to test the output voltage of the
controller. It is the plug that connects the controller and display. It has five wires on the plug, please
test the red and black wires (Figure. 7-3). If the voltage is “0”, it means the controller needs to be
replaced, please take some pictures and send them to us; if the voltage is the same as the battery, it
means the display needs to be replaced. Please picture the testing results and send them to us. It will
help us for solving your problem asap.
We have video on YouTube:
