Brother S-7100A-403 Instruction Manual page 50

Error code
E150
・ This is displayed when the motor becomes abnormally hot and the temperature
protection has activated.
Motor is
overheating.
E151
・ The connection of the 10-pin resolver connector at the control box is faulty.
Problem with
motor
・ Problem with motor or main PCB.
overheating
sensor.
E161
・ This is displayed when a motor overload operation has occurred.
Motor overload
protection
・ Problem with motor.
E190
・ This appears on the display when the sewing machine has been operating
continuously for 3 minutes or more.
Motor timeout.
E191
・ This is displayed if the sewing machine motor locks during thread trimming.
Thread trimming
solenoid timeout.
E410
・ Is the 8-pin operation panel connector at the control box disconnected?
Error
communicating
with operation
panel.
E440
・ Problem with main PCB.
Error writing data
to main PCB.
E441
・ Problem with main PCB.
Error reading data
from main PCB.
E442
・ The data on the main PCB is corrupted. Corrupt data was initalized.
Problem with data
on main PCB.
E451
・ Data could not be correctly written to the panel when adjusting the needle up stop
position.
Error writing data
to head detector
・ Alternatively, turn the power off and then back on again to reset the machine.
unit.
After the temperature has dropped, turn on the power switch and operate the
sewing machine as normal.
Turn off the power switch, and then check the connection of the 10-pin resolver
connector.
Replace the motor or the control box.
Turn off the power switch, and then turn the pulley by hand and check that it
turns easily.
Replace the motor.
Turn the power switch off and then back on again, and then operate the sewing
machine normally.
Remove any thread scraps that may be blocking the motor.
Check that there are no problems with the thread trimming mechanism.
Turn off the power switch, and then check the connection of the 8-pin operation
panel connector.
Replace the control box.
Replace the control box.
Turn the power off and then back on again.
Repeat the write operation.
Possible cause
S-7100A
8. TROUBLESHOOTING
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