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10. TABLE OF ERROR CODES
73 KE-430F, BE-438F
Upper shaft motor-related errors
Code Cause and remedy
E100
Sewing machine has continued to be used for a certain period after the “GREASEUP” notification appears
without the grease being applied (without the reset procedure being carried out).
Apply grease and then carry out the reset procedure. (Refer to the service manual for the reset procedure.)
E111
Upper shaft did not stop at the needle up stop position when the sewing machine stopped.
Turn off the power, and then check that there are no problems with the thread trimming mechanism and the
machine motor mechanism.
E121
Thread trimming was not completed.
Turn off the power, and then check if the cutting edges of the fixed knife and movable knife are damaged or worn.
E130
Sewing machine motor stopped due to a problem, or synchronizer is faulty.
Turn off the power, and then turn the machine pulley to check if the machine has locked up.
Check that connector P11 on the power supply motor P.C. board and the 4-pin upper shaft motor connector are
properly connected.
E131
Synchronizer is not connected correctly.
Turn off the power, and then check that connector P11 on the power supply motor P.C. board is properly
connected.
E132
Problem detected with sewing machine motor operation.
Turn off the power, and then check that connector P11 on the motor P.C. board is properly connected.
E133
Sewing machine motor stopping position is incorrect.
Turn off the power, and then check that connector P11 on the motor P.C. board is properly connected.
E150
Sewing machine motor is overheating, or temperature sensor is faulty.
Turn off the power, and then check the sewing machine motor.
(When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle
operation), the upper shaft motor may overheat and the “E150” error code may be generated.)
Feed mechanism-related errors
Code Cause and remedy
E200
X feed motor home position cannot be detected. Problem with X feed motor or poor X encoder connection.
Turn off the power, and then check that connectors P17 and P21 on the main P.C. board are properly connected.
E201
X feed motor stopped abnormally.
Turn off the power and check that there is no problem with the X feed direction.
E204
X feed motor stopped abnormally during sewing.
Turn off the power and check that there is no problem with the X feed direction.
E205
X-feed motor stopped due to a problem while moving to the sewing start position.
Turn off the power and check that there is no problem with the X feed direction.
E206
X feed motor stopped abnormally during test feeding.
Turn off the power and check that there is no problem with the X feed direction.
E210
Y feed motor home position cannot be detected. Problem with Y feed motor or poor Y encoder connection.
Turn off the power, and then check that connectors P18 and P22 on the main P.C. board are properly connected.
E211
Y feed motor stopped abnormally.
Turn off the power and check that there is no problem with the Y feed direction.
E214
Y feed motor stopped abnormally during sewing.
Turn off the power and check that there is no problem with the Y feed direction.
E215
Y-feed motor stopped due to a problem while moving to the sewing start position.
Turn off the power and check that there is no problem with the Y feed direction.
E216
Y feed motor stopped abnormally during test feeding.
Turn off the power and check that there is no problem with the Y feed direction.
Work clamp-related errors
Code Cause and remedy
E300
Work clamp home position cannot be detected. Problem with work clamp motor or poor work clamp encoder
connection.
Turn off the power, and then check that connectors P19 and P23 on the main P.C. board are properly connected.
E301
Work clamp/button clamp raised or lowered position cannot be detected.
Turn off the power, and then check that there is no problem with the vertical work clamp/button clamp position.