Controller communication error
Controller stops working（possibly over
current，blocking，under voltage，over
temperature）
Controller power tube error
Controller hall sensor error
Controller handlebar error
Battery communication error
Charging over current
Charging over voltage
Battery over temperature
Please contact with after-sales service or dealer
Please park for a while then start again
Please contact with after-sales service or dealer
Please contact with after-sales service or dealer
Please check the wire of handlebar or contact with
after-sales service for replace
Please check the battery connector status，contact
with after-sales service or dealer
Stop charging then check the charger
Stop charging then check the charger
Stop charging，stop riding，try to ride after the
temperature of battery dropping
Error 90 on speedometer
Error 89 on speedometer
Error 88 on speedometer
Error Causes Solutions
Battery discharge over current
Charging low temperature
Discharging low temperature
In case it shows error 90 all the time，stop riding，
wait for a moment
Take out the battery and charge in warm indoor place
Store the battery or e-bike in warm indoor place ，
wait for a moment
25
COMMON PROBLEMS AND TROUBLESHOOTING METHODS
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