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S-7200C
19. TROUBLESHOOTING
160
Error code Possible cause Page
E150
Motor is
overheating.
・ This is displayed when the motor becomes abnormally hot and the temperature
protection has activated.
After the temperature has dropped, press the power ON switch and operate the
sewing machine as normal.
E151
Problem with
motor
overheating
sensor.
・ Is the connector inside the motor disconnected?
Press the power OFF switch, and then check
that the connector is securely inserted.
・ Malfunction of motor overheating sensor
Replace the motor.
*
E190
Motor timeout
・ This appears on the display when the sewing machine has been operating
continuously for 3 minutes or more.
Turn the power switch off and then back on again, and then operate the sewing
machine normally.
E191
Thread trimming
solenoid timeout
・ This is displayed if the sewing machine motor locks during thread trimming.
Remove any thread scraps that may be blocking the motor.
Check that there are no problems with the thread trimming mechanism.
*
E410
Error
communicating
with operation
panel
・ Is the 12-pin operation panel connector inside the control box disconnected?
Press the power OFF switch, and then check that the 12-pin operation panel
connector is connected to connector P7 on the main PCB.
150-151
Instruction
manual
E440
Error writing data
to main PCB
・ Problem with main PCB.
Replace the control box.
*
E441
Error reading data
from main PCB
・ Problem with main PCB.
Replace the control box.
*
E442
Problem with data
on main PCB
・ The data on the main PCB is corrupted. Corrupt data was initalized.
Turn the power off and then back on again.
E450
・ Model selection could not be loaded from the head detector unit.
Check that the head detector unit specifications are correct.
E451
Error writing data
to head detector
unit
・ Problem with head detector unit.
Replace the head detector unit.
*
4267M