Brother S-7200A Service Manual page 65

12. TROUBLESHOOTING
Error code
Err 12
Err 13
Err 14
Err 15
Err 16
Err 18
Err 19
Err 20
59
Is the solenoid fuse F2 (5 A) blown?
Replace the fuse.
Problem with control circuit board.
Replace the control box.
Is connector CN2 inside the control box
disconnected?
Insert the connector securely.
Is there a broken wire in the treadle connector cord?
Replace the treadle unit.
Problem with head detector unit
Check that connector CN18 inside the
control box is securely connected.
Replace the head detector unit.
Problem with motor.
Replace the motor.
Problem with motor driver.
Replace the control box.
This is displayed when the sewing machine motor locks during thread trimming.
Remove any thread that is tangled.
Check that there are no problems with the thread trimming mechanism.
This is displayed when data could not be written correctly into the memory element
of the control circuit board.
Replace the control box.
This is displayed when the control box is abnormally warm.
(3-phase specifications only)
Check that there is no problem with the cooling fan.
If there is a problem, replace the cooling fan.
Has the setting for standard depression strokes been set correctly?
Repeat the setting for standard depression strokes.
Treadle unit malfunction.
Replace the treadle unit.
Possible cause
S-7200A
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