27
E3
No
speed
sensor
signal: The
voltage
output
is
controlled
to the DC
motor,
and
the
motor
speed
feedback is
not received
continuously
for more than
3 seconds.
1 Check if the motor terminal is firmly
connected to the control.
2 Stop into the fault state, the
electronic watch buzzer sounds 9 times,
and the fault code is displayed at the
same time, and the rest of the area does
not display the content. After the fault
condition is maintained for about 10
seconds, it enters the standby state and
can be restarted.
Possible cause: The speed sensor signal
is not detected for 3 seconds, check if
the sensor plug is not inserted or
damaged, plug it in or replace the
sensor.
3 Stops into the fault state, the
electronic watch buzzer sounds 9 times,
and the fault code is displayed at the
same time, and the rest of the area does
not display the content. If it returns
to normal after the shutdown, it can
enter the standby state and start
normally.。
