When your machine stops working, the alphanumeric code on the digital panel indicates the exact subsystem failure. This troubleshooting guide details the complete , explains why each error occurs, and steps through how to resolve them to get your machine back to work. Siruba L818FM1 Error List & Fixes Error Code Issue Description Common Cause Quick Solution E01 / E02 Overvoltage / Power Surge High supply voltage or high machine inertia. Check wall outlet voltage; lengthen deceleration time. E03 Motor or Machine Locked Thread jammed in hook; mechanical binding. Clean the rotary hook; check for bound gears. E04 Communication / Signal Error Loose connection on the motor plug. Securely re-insert the motor control connector. E06 Signal Interference / Noise High-frequency outside electrical noise. Remove external noise sources; check shielding. E08 / E09 Needle Positioner / Signal Error Disconnected encoder or broken UP/DOWN signals. Tighten encoder; check synchronizer plug. E11 Solenoid / Fuse Defect Blown 12V fuse or short-circuited thread trimmer coil. Replace the solenoid valve or control box fuse. E14 Encoder Signal Failure Loose motor encoder plug or broken sensor. Check data cable; replace motor if sensor failed. E15 Overcurrent Protection Module overload or bound motor drive. Power down system, wait 10 seconds, and restart. E17 Safety Switch Triggered Machine head tilted back during operation. Lower the machine head fully; check safety switch. Step-by-Step Troubleshooting for Common Errors 1. Fixing Motor and Head Locks (E03)
Sometimes, the display shows an obscure code like (not officially documented). Use this step-by-step diagnostic workflow:
Ensure all communication cables between the motor and control panel are connected correctly. 4. ERR17 - Emergency Switch Pressed siruba l818fm1 error list work
The control box has lost communication with the main internal motor sensor.
Some errors, like the "speed drops, reverse stitch disappears, and the machine freezes after turning off and on" issue, point to a failing component on the control board that is sensitive to temperature or power fluctuations. In such cases, replacing the control board is often the most straightforward solution. When your machine stops working, the alphanumeric code
To minimize down-time and keep the control electronics from throwing overcurrent or encoder faults, build a regular check-up strategy around your machine:
: If your factory environment experiences frequent brownouts ( E02 ), install a dedicated line stabilizer. 2. Resolving Motor and Mechanism Jams (E03) Check wall outlet voltage; lengthen deceleration time
error list work breakdown provides the specific causes, diagnostic triggers, and immediate repair steps required to clear control system alarms and optimize machine performance.
On models equipped with a direct-drive motor and control panel, errors usually appear as an (e.g., E-10, E-20).
If you have specific errors or want to learn about the , let me know! I can help you: Reset the machine to factory settings. Adjust speed parameters. Configure the automatic thread trimmer . Siruba L818F Instruction Manual
Turn off power and check the motor encoder connector. It may be loose or have fallen off. Restart the system after securing it. Over-Current Protection