Troubleshooting
114 Operating Instructions 967 - 02.0 - 11/2016
5160 Stitch loosening device • Stitch loosening cannot be 
performed
3215 Bobbin stitch counter 
(info value 0 reached)
• Change bobbin, set counter 
value
3216 Remaining thread monitor 
left
• Change the left bobbin
3217 Remaining thread monitor 
right
• Change the right bobbin
3218 Remaining thread monitor 
left and right
• Change the left and right 
bobbin
3223 Skip stitch detected -
3224 Bobbin failed to rotate -
6360 No valid data on external 
EEprom (internal data 
structures are not 
compatible with the external 
data storage device)
• Perform software update
6361 No external EEprom 
connected
• Connect machine ID
6362 No valid data on internal 
EEprom (internal data 
structures are not 
compatible with the external 
data storage device)
• Check machine 
ID connection
• Switch off the control, wait 
until the LEDs are off and 
then switch on the machine 
again
• Perform software update
6363 No valid data on internal 
and external EEprom 
(software version is not 
compatible with the internal 
data storage device, 
emergency operating 
features only)
• Check machine 
ID connection
• Switch off the control, wait 
until the LEDs are off and 
then switch on the machine 
again
• Perform software update
Code Possible cause Remedial action