on your display right now, or are you performing general maintenance? Sewing Machine Error Code Guide | PDF | Power Supply
Note: Different firmware versions (MF1, MF2, or sync) may display codes with or without a dash, but the numbers remain consistent.
The is a high-speed, single-needle industrial lockstitch machine. On models equipped with electronic control boxes and programming panels, error codes (typically starting with "E") indicate electrical or mechanical faults that require immediate attention. Error Code List and Meanings siruba l818f-m1 error list
Siruba L818F-M1 is an industrial lockstitch sewing machine typically equipped with a servo motor and an electronic control box. When malfunctions occur, the control panel displays error codes (e.g., E1, E7) to help identify the issue. Common Servo Motor Error Codes
Check : Inspect the motor connector pins and ensure they are correctly seated. on your display right now, or are you
| Error Code | Description | Probable Cause(s) | Corrective Action(s) | | :--- | :--- | :--- | :--- | | | Overcurrent (Hardware) | - Short circuit in the motor windings. - Defective IGBT module in the control box. - Motor connector plug is loose or has debris. | 1. Disconnect power. Inspect motor connector (CN1) for bent pins. 2. Check motor resistance with a multimeter (should be balanced across phases). 3. Replace control box if short persists. | | E-004 | Overcurrent during operation | - Mechanical jam (thread tangled in hook, fabric jam). - Motor stall due to high load. - Abrupt acceleration from pedal. | 1. Rotate handwheel manually – it should move freely. Clear any jams. 2. Reduce sewing speed via panel. 3. Calibrate the pedal position sensor (see calibration procedure below). | | E-005 | Regeneration overvoltage | - AC input voltage >265V. - Deceleration too rapid (high speed to stop instantly). - Regeneration resistor open circuit. | 1. Measure mains voltage (should be 200-240V AC). 2. Reduce deceleration rate via parameter P-15 (set to a higher value). 3. Check internal regenerative resistor (approx. 100Ω, 50W). | | E-006 | Motor overspeed | - Encoder signal disrupted. - Synchronizer (upper shaft sensor) failure. - Control loop instability. | 1. Inspect encoder cable (CN5) for damage or poor contact. 2. Re-seat the synchronizer connector. 3. Perform "Motor Auto-Tuning" (see service manual). | | E-007 | Emergency stop triggered | - External e-stop button pressed (if equipped). - Pedal safety switch activated. - Wiring short to ground in stop circuit. | 1. Release emergency stop button. 2. Check pedal return spring. 3. Trace the safety input lines (terminals 7-8 on CN9). | | E-008 | Overvoltage on DC bus | - Mains voltage surge. - Defective power supply capacitors inside control box. | 1. Install a line filter or voltage stabilizer. 2. Replace control box (internal failure). | | E-009 | Undervoltage on DC bus | - Mains voltage <170V AC. - Power cord too long or undersized causing drop. - Rectifier bridge failure. | 1. Check wall outlet voltage. 2. Use a thicker, shorter extension cord. 3. Check main fuse and rectifier. | | E-010 | CPU communication error | - Noise interference on internal bus. - Loose ribbon cable between main board and display panel. - Firmware mismatch. | 1. Turn off power, wait 10 sec, restart. 2. Re-seat all internal flat cables. 3. Contact Siruba service for firmware reflash. | | E-012 | Position sensor (needle up/down) error | - Synchronizer signal missing. - Magnet displaced on handwheel. - Sensor gap >2mm. | 1. Enter manual mode: rotate handwheel – panel should show "UP" and "DN". 2. Adjust synchronizer gap to 1.5mm ±0.5mm. 3. Replace synchronizer (part # S512-160A). | | E-013 | Pedal sensor calibration error | - Pedal not in neutral on startup. - Sensor voltage out of range (0-5V). - Broken pedal potentiometer. | 1. Re-calibrate: - Turn off power. - Press and hold "P" button, then turn on power. - Do not touch pedal. Press "P" again. - Press pedal fully forward, press "P". - Press pedal fully backward, press "P". - Exit by pressing "E". 2. Replace pedal assembly if calibration fails. | | E-014 | Thread trimmer solenoid overload | - Seized trimmer mechanism. - Short in solenoid coil (resistance <10Ω). - Output transistor shorted on control board. | 1. Manually actuate trimmer lever – it should move with light finger pressure. 2. Disconnect solenoid (CN7) and measure resistance (normal: 15-20Ω). 3. Check for metal shavings inside solenoid. | | E-015 | Cooling fan failure | - Fan impeller blocked by lint. - Fan connector (CN13) loose. - Fan bearing seized. | 1. Clean fan vent with compressed air. 2. Check 12V supply on CN13 pin 1 & 2. 3. Replace fan (24V DC, 40mm). | | E-016 | Memory (EEPROM) error | - Corrupted parameter settings. - Static discharge to control panel. - EEPROM chip failure. | 1. Reset to factory defaults: - Turn off power. - Press and hold "+" and "-" together, then turn on. - Release when display shows "init". 2. If error persists, replace main board. |
| Display Shows | Meaning | Solution | | :--- | :--- | :--- | | | Child lock / Key lock activated (Hold button for 3 seconds). | Press and hold the P or Lock button for 3 seconds until Loc disappears. | | Oil | Oil level low or oil sensor activated (every 100 hours). | Refill head oil window to between two lines. Then press P + + to reset oil counter. | | E-100 | Emergency stop triggered (external, if wired). | Twist/reset the red e-stop button. Cycle power. | | E-200 | Thread break detected (if optional thread break sensor installed). | Rethread machine. Clean dust off photo-eye sensor. | On models equipped with electronic control boxes and
If you encounter these errors, follow these standard diagnostic steps: Check for Jams
Do not attempt to open the M1 control box unless you are trained in handling high-voltage capacitors. Even unplugged, the DC bus can hold a lethal charge for several minutes.
Faulty connection between the control box and the display panel. Speed Control Unit Error