– 123 –
Error
code
Description of error
Display message
How to recover
Place of
recovery
E722
AW device fault (Standby
position bobbin-sensor error)
Turn OFF the
power
E723
AW data fault (EEPROM)
Turn OFF the
power
E724
AW data fault (Adjustment
value)
Turn OFF the
power
E725
AW CPU fault
Turn OFF the
power
E731
Main motor hole sensor is
defective or position sensor is
defective.
Hole sensor or position sensor
of the sewing machine motor is
defective.
Turn OFF the
power
E733
Reverse rotation of main shaft
motor
When sewing machine motor
rotates in reverse direction.
Turn OFF the
power
E811
Overvoltage
When input power is more than
the specified value.
Turn OFF the
power
E813
Low voltage
When input power is less than the
specified value.
Turn OFF the
power
E814
24 V overvoltage
Turn OFF the
power
E815
33 V overvoltage
Turn OFF the
power
E816
24 V low voltage
Turn OFF the
power