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H2 Control board high
temperature
1. Stop riding or riding scooter at low speed, avoiding
climbing.
2. Check the installation of control board radiator.
3. Replace the control board
SN Lack of series number 1. Check whether the firmware version is correct.
2. Reset the serial number.
S2 Lack of phase, mos tube
drive failure
1. Restart and turn scooter on as static, avoiding turning
on scooter while advancing.
2. Replace the control board.
S1 Short circuit 1. Get the motor disconnected and restart up scooter. If
this alarm has not been cleared, get control board
replaced; otherwise, all-clear, replace the motor.
LR Over current 1. Release the accelerator.
2. Restart.
3. Replace the control board.
H3
Control board super high
temperature
1. Stop riding or riding scooter at low speed, avoiding
climbing.
2. Check the installation of control board radiator.
3. Replace the control board.