Brother BAS-311H Instruction Manual page 78

11. LIST OF ERROR CODES
Motor-related errors
Code
E100 Turn off the power, add grease, and then carry out the specified reset operations.
Upper shaft did not stop at the needle up stop position when the sewing machine stopped.
E111 Turn off the power, and then check that connectors P11 and P1 on the motor P.C. board and connector P6 on the
main P.C. board are properly inserted.
Thread trimming was not completed.
E121
Turn off the power, and then check if the cutting edges of the fixed knife and movable knife are damaged or worn.
Sewing machine motor stopped due to a problem, or synchronizer is faulty.
Turn off the power, and then turn the pulley and check if the sewing machine has locked up. Check that
E130
connectors P11 and P1 on the motor P.C. board, connector P6 on the main P.C. board and connector P4 on the
upper shaft motor P.C. board are properly inserted.
Synchronizer is not connected correctly. Turn off the power, and then check that connector P11 on the motor P.C.
E131
board is properly connected.
Problem detected with sewing machine motor operation.
E132 Turn off the power, and then check that connectors P11 and P1 on the motor P.C. board, connector P6 on the
main P.C. board and connector P4 on the upper shaft motor P.C. board are properly inserted.
Sewing machine motor stopping position is incorrect. Turn off the power, and then check that connectors P11 and
E133 P1 on the motor P.C. board, connector P6 on the main P.C. board and connector P4 on the upper shaft motor
P.C. board are properly inserted.
Sewing machine motor is overheating, or temperature sensor is faulty.
Turn off the power, and then check the sewing machine motor.
E150
(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.)
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Cause of error and remedy
BAS-311H