This comprehensive troubleshooting guide explains the most common error codes for the Siruba L818FM1, details what causes them, and provides step-by-step instructions to get your machine back to work. Siruba L818FM1 Error Code Troubleshooting Table Error Code Core Issue Primary Cause Immediate Fix Over-Current / Over-Voltage Power surge or short circuit on the mainboard. Turn off power, wait 2 minutes, and restart the machine. E02 / ERR20 Low Voltage Protection Unstable AC main supply or faulty power board.
Tracks whether the needle is cleanly in its UP or DOWN position during active trimming and stitching routines. Master Error Code Diagnostic Reference Table
Build-up under the needle plate and in the bobbin case is the #1 cause of "E3" motor lock errors. Clean these areas daily. siruba l818fm1 error list work
Accumulated thread lint inside the upper tension unit prevents the discs from clamping down on the thread. Pull a piece of fabric soaked in alcohol through the discs to clear debris.
From the service manual and real-world factory logs, here are the key codes you’ll meet: E02 / ERR20 Low Voltage Protection Unstable AC
If you tell me the on your panel, I can provide a specific step-by-step fix . If you're experiencing a mechanical problem (like broken thread or skipping stitches), please let me know: The type of fabric you are sewing The needle size How often the issue occurs
: If your factory environment experiences frequent brownouts ( E02 ), install a dedicated line stabilizer. 2. Resolving Motor and Mechanism Jams (E03) Clean these areas daily
1. Power down immediately.2. Measure factory outlet voltage with a multimeter.3. Re-plug once voltage stabilizes. Motor Stall / Locked Rotor
1. Power off the machine and wait 60 seconds to discharge capacitors.2. Check for severe mechanical jams (e.g., thread bird-nesting in the hook area) locking up the drive shaft.3. Restart the system. If the code triggers immediately without movement, the internal control board module is damaged. Safety Switch Not Engaged
To minimize down-time and keep the control electronics from throwing overcurrent or encoder faults, build a regular check-up strategy around your machine:
A short circuit in the solenoid wiring or a defective solenoid coil. Inspect the trimmer or back-tack solenoid. 12V Power Failure