Troubleshooting
Operating Instructions M-TYPE DELTA - 01.0 - 08/2019 187
3021 Error U24 V short circuit • Disconnect magnet plug; replace control
if error is not corrected: Replace control
3022 Error U24 V (I²T) overload • One or several magnets defective
3030 Error Motor phase failure • Replace control
3104 Warning Pedal is not in position 0 • When switching the control on, take your
foot off the pedal
3109 Warning Operation lock • Check tilt sensor on machine
3110 Information Right thread tension magnet is
not connected
• Check the connection of right thread
tension magnet
3111 Information Left thread tension magnet is
not connected
• Check the connection of left thread
tension magnet
3150 Information Maintenance necessary • For information on lubricating the
machine, see the service instructions for
the machine
3217 Information RFW right • Bobbin is empty
• Insert a new bobbin
3223 Information Skip stitch detection • -
3224 Information Bobbin rotation monitor • The bobbin is not rotating
• Check the bobbin, advance the initial
thread
3225 Information SSD sensor is soiled • Use compressed air or a soft cotton
cloth to clean the sensor
3354 Information Failure in thread trimmer
process
• Perform a software update
3383 Information Failure in with the motor
referencing process
• Check motor
• Perform a software update
4201 Warning Failure SD-Card • Insert SD card
• Replace control
Code Type Possible cause Remedial action
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