Siruba L818-FM1 is an industrial lockstitch sewing machine typically equipped with an electronic control system. If your machine displays an error code, it usually indicates a motor, sensor, or power supply issue.
Check if the detector (synchronizer) connector is loose. Verify if the UP/DOWN signal is broken. Solenoid Fault
: The connecting data cable is loose, frayed, or unplugged. How to fix : Power down the machine completely.
While Siruba uses proprietary error codes, the L818F-M1 can show a range of messages. Based on technician feedback, here is the most common error list:
: Regularly use a brush to remove lint buildup around the bobbin case and feed dogs to prevent stitch quality drop. siruba l818fm1 error list work
Locate the synchronization cable running from the motor/handwheel to the control box backplane.
If the thread trimmer is stuck, clean it and check if it has failed. Regular Maintenance to Prevent Errors
: Overloaded power strips, sharing a line with high-draw equipment, or localized brownouts. How to fix :
Remove nearby sources of electrical noise. Check the position detector connector. Manual back-tacking active for over 15 seconds. Release the back-tack lever and reset the power. Solenoid over-current protection. Inspect solenoid cables for shorts or damage. Encoder signal missing or failed. Siruba L818-FM1 is an industrial lockstitch sewing machine
Fabric dust can bypass seals over time and cover the internal photo-interrupters. Remove the rear motor cover plate and use dry, clean compressed air to clear any debris out of the encoder wheel slot.
Remove any source of electrical noise (such as other high-power machinery) near the machine. Restart the machine. Check if the position detector plug is secure. Look for damaged cables on the top of the handwheel area. If E9 Appears (Solenoid Defect):
To clear most error codes:
| Error Code | Meaning | How It Feels | |------------|---------|----------------| | | Foot pedal not returning to zero | Machine thinks you’re pressing the pedal halfway – refuses to start. | | E-02 | Servo motor overload | You tried to sew through 8 layers of denim hem. Respect, but no. | | E-03 | Thread trimmer sensor fail | Trimmer fires but doesn’t reset. Now you have 4 loose threads and a confused face. | | E-04 | Needle position sensor error | Machine forgot if needle is up or down. Spoiler: it’s always wrong. | | E-05 | Low voltage to control board | Happens in old factories with unstable power. Machine goes into safe mode. | | E-06 | Communication error between panel and main board | Buttons work, display shows gibberish. Reboot fixes 80% of cases. | Verify if the UP/DOWN signal is broken
Open the slide plate and inspect the bobbin case, hook assembly, and thread trimmer area for thread jams.
Install a dedicated industrial voltage stabilizer if your facility experiences frequent power spikes. E02 / ERR20 — Low Voltage Protection
If your machine is not throwing an electronic code but still refuses to work smoothly, run through this quick operational diagnostic:
If the head is flat but the error remains, the switch may be broken or misaligned.