Troubleshooting
Service Instructions 755 A/756 A - 00.0 - 02/2019 453
1053 Mains voltage too high Check mains voltage
1054 Internal short circuit Replace control
1055 Sewing motor overload
• Sewing motor blocked/not
moving freely
• Sewing motor defective
• Control defective
• Eliminate seizing/stiff movement
• Replace sewing motor
• Replace control
1056 Sewing motor overtemperature
• Sewing motor not moving freely
• Sewing motor defective
• Control defective
• Eliminate seizing
1058 Sewing motor speed
• Sewing motor defective • Replace sewing motor
1060 • Sewing motor excess current/
excess voltage
• Encoder defective
• Replace sewing motor cable
• Replace encoder
• Replace sewing motor
• Replace control
1061 • Encoder defective
• Sewing motor excess current/
excess voltage
• Replace sewing motor cable
• Replace encoder
• Replace sewing motor
• Replace control
1120 Software error: Parameter not ini-
tialized
• Perform software update
 p. 431
•Check class
1203 Sewing motor: Position not
reached
• Check mechanical changes to
the machine (e.g. thread cutting
setting, toothed belt tension)
• Check position of thread lever at
top dead center
1302 Sewing motor current feed fault
• Sewing motor blocked
• Encoder cable not connected
or defective
• Encoder defective
• Remove blockage
• Check encoder cable and replace,
if necessary
• Replace sewing motor
1330 No answer from sewing motor • Switch off and on the machine
again
• Perform software update
 p. 431
• Replace control
1342-1344 Internal sewing motor error • Switch off and on the machine
again
• Perform software update
 p. 431
• Replace control
Error code Symbol Meaning Remedial action
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