21
E1
Abnormal
communicatio
n: The
Communicati
on
between the
lower
control and
the
electronic
watch is
abnormal
after
power-on.
The lower control stops and enters the fault
state. Can not run up. The electronic watch
displays the fault code and the buzzer sounds
3 times.
Possible cause: The communication between
the electronic control and the electronic watch
is blocked.
1.1 Check each connection of the electronic
watch to the lower control communication line
to ensure that each core is fully inserted.
1.2 Check if the cable between the electronic
watch and the controller is damaged and
replace the cable.
E2
Indicates that
the controller
does not
detect the
voltage on
the motor.
Possible cause:
2.1 Check if the motor cable is connected and
reconnect the motor cable.
2.2 Check the controller for odor and replace
the motor;