S-7000DD
8. TROUBLESHOOTING
41
Error code
Possible cause
Page
E701
Abnormally high
power supply
voltage.
・
Does the power supply voltage match the control box voltage specifications?
Check that the voltage matches.
Check the connection of the 5-pin transformer connector inside the control box.
(220 V AC: P12, 230 V AC: P13)
・
Is the power supply voltage abnormally high?
Check the power supply voltage.
・
Problem with control box.
Replace the control box.
*
*
**
E705
Abnormally low
power supply
voltage.
・
Is the power supply voltage abnormally low?
Check the power supply voltage.
Check the connection of the 5-pin transformer connector inside the control box.
(220 V AC: P12, 230 V AC: P13)
・
Problem with control box.
Replace the control box.
*
**
E710
Motor
overcurrent.
・
Is the electrical equipment connector inside the control box disconnected?
Turn off the power switch and then turn the machine pulley by hand and check
that it turns easily.
・
This is displayed if the machine pulley moves stiffly when it is turned by hand, or if
the sewing machine locks up and an abnormal current is flowing.
Turn off the power switch and then turn the machine pulley by hand and check
that it turns easily.
・
This is displayed if there is some problem with the motor and an abnormal current is
flowing.
Replace the motor.
・
Problem with control box.
Replace the control box.
When the power supply voltage is abnormally low, E710 may be displayed
instead of E705.
*
*
**
**
E790
Problem with
solenoid power
supply
・
This is displayed when there is no power for solenoid, or if the power level is
abnormally low.
Check the connection of the 2-pin transformer connector inside the control box.
・
Problem with main P.C. board or transformer.
Replace the control box.
*
**
E791
Solenoid
overcurrent.
・
This is displayed when there is overcurrent in any of the solenoids (thread trimming,
thread wiping, quick reverse or presser lifter).
Check the resistances of the solenoids.
・
Problem with main PCB.
Replace the control box.
*
**
NOTE:
If an error code that is not listed above appears or if carrying out the specified remedy does not solve
the problem, contact the place of purchase.