Troubleshooting
When controller detects failure, the truck stops working. LCD gives fault identification codes.
The LCD uses two-digit code. Two short flashing and one long interval means 11,two short
flashing, one short flashing and one long interval means 21, etc.
Motor short circuit or controller failure
M+ current 0 bit detection error
M- current 0 bit detection error
Motor hall sensor failure, controller failure, or
Temperature sensor failure
Temperature sensor failure or circuit
Acceleration potentiometer failure or circuit fault
Overheating current limit
Controller is overheated, causing current limit
Controller is overheated, and automatically
Over temperature, current output limit
Motor over temperature, current output limit
Electromagnetic brake error
Electromagnetic brake is broken, causing open
Motor open circuit or Motor failure
Low battery voltage, current limit
Low battery voltage causing current limit
Low battery voltage protection
Low battery voltage, truck is shut down
Lithium battery with high temperature
LCD display fault or harness fault
Controller version is not updated
Note: Error code might change due to updated controller versions. Please refer to the
actual instructions on the controller or contact the technician.
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