Owner's Manual

Z-8550A, 8560A
15. TROUBLESHOOTING
80
Error code Possible cause Page
Err 130
(Upper shaft
motor locked）
• Is the motor connector 4P disconnected from
the control box?
Insert the connector securely.
• Has the machine locked up?
Turn off the power and then turn the
machine pulley by hand and check that it
turns easily.
11*
Err 131
(Upper shaft
encoder not
connected)
• Is the encoder connector 14P inside the
control box disconnected?
Insert the connector securely.
11*
Err 190
(Over time)
• This appears on the display when the sewing machine has been operating
continuously for 3 minutes or more.
Turn the power switch off and then back on again, and then operate the sewing
machine normally.
Err 191
(Thread trimming
overtime error:
8560A)
• This appears on the display if the needle bar does not move to the needle up stop
position after the treadle is depressed backward.
Check that the thread is not tangled around the rotary hook or the knife unit.
Check if there is a problem with the thread trimming mechanism.
*
Err 200
(Zigzag home
position error)
• Is the 5-pin zigzag motor encoder connector
or the 5-pin zigzag motor connector inside
the control box disconnected?
Insert the connector securely.
11*
Err 201
(Needle zigzag
error)
• A problem with the zigzag motor caused it to stop.
Check if there is a problem with the left and right movement of the needle bar.
3563M
3564M
3565M