Brother BAS-300G-484/484SF Owner's Manual

 

 

55 

KE-430D, BE-438D 

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet 

before opening the face plate of the control box. Touching areas where high voltages are present can result in 

severe injury.

 

If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display 

window. Follow the remedy procedure to eliminate the cause of the problem. 

 

Code 

Cause and remedy 

Foot switch is depressed to the 2nd step. 

Turn off the power and check the foot switch. 

Foot switch is depressed to the 1st step. 

Turn off the power and check the foot switch. 

Machine head tilting was detected after the power was turned on. 

Turn off the power, and then return the machine head to its original position. 

Check that connector P8 on the main P.C. board is properly connected. 

Machine head tilting was detected while the sewing machine was operating. 

Turn off the power, and then check that connector P8 on the main P.C. board is properly connected. 

Machine head tilting was detected when the power was turned on. 

Turn off the power, and then return the machine head to its original position. 

Check that connector P8 on the main P.C. board is properly connected. 

An operation panel key was still being pressed when the power was turned on, or key is faulty. 

Turn off the power and check the operation panel. 

 
Upper shaft motor-related errors 

Code 

Cause and remedy 

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.) 

Needle up stop position error. 

Turn the pulley to align the index mark with the needle up stop position. 

Upper shaft did not stop at the needle up stop position when the sewing machine stopped. 

Turn the pulley to align the index mark with the needle up stop position. 

Needle drop signal could not be detected. 

Turn off the power, and then check the synchronizer connection. 

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.

Sewing machine motor stopped abnormally or synchronizer is not connected correctly. 

Turn off the power, and then turn the machine pulley to check if the machine has locked up. 

Check that connectors P4 and P5 on the power supply motor P.C. board are properly connected. 

Synchronizer is not connected correctly. 

Turn off the power, and then check that connector P5 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 P4 on the power supply motor P.C. board is properly 

connected. 

E133 

Sewing machine motor stopping position is incorrect. 

Turn off the power, and then check that connector P5 on the power supply 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.)