Siruba+l818fm1+error+list+2021 Review

Below is the exhaustive error table for the Siruba L818FM1. Each entry includes the error code, display message, probable cause, and recommended solution.

| Error Code | Display Message | Probable Cause | Recommended Solution | |------------|----------------|----------------|----------------------| | E-001 | Motor Overload | Servo motor current exceeds 150% of rated value; fabric jamming under presser foot. | Remove fabric jam. Reset the machine. Check for thread entanglement in the hook area. | | E-005 | Encoder Signal Loss | Loose connection between motor encoder and main PCB (Printed Circuit Board). | Inspect encoder cable (CN7 connector). Re-seat the connector. Replace encoder if damaged. | | E-007 | Needle Up/Down Position Error | Needle positioning sensor (magnetic or photoelectric) is dirty or misaligned after 2021 firmware update. | Clean sensor area with compressed air. Run the “Needle Position Auto-Tuning” from the hidden service menu (Press and hold P + S for 5 sec). | | E-010 | Communication Error (Panel to CPU) | Loose ribbon cable between control panel and main control box. Common after vibration. | Turn off power. Remove and reattach the flat ribbon cable. Check for bent pins. | | E-012 | Low Voltage (Under-voltage) | AC input voltage drops below 180V. Brownout condition. | Use a voltage stabilizer. Check wall outlet (should be 200-240V). Do not share circuit with heavy machinery. | | E-015 | Over-voltage | AC input exceeds 260V or regenerative voltage from motor braking is too high. | Install a line reactor or surge protector. Check for faulty brake resistor (40-50 ohms). | | E-018 | Thread Trimmer Solenoid Jam | Solenoid for automatic thread trimmer fails to retract within 0.3 seconds. | Lubricate trimmer mechanism with silicone oil. Check solenoid coil resistance (should be 25-30 ohms). | | E-021 | Presser Foot Lift Solenoid Error | Presser foot lifter solenoid stuck or open circuit. | Manually lift presser foot to check mechanical binding. Test solenoid voltage (24VDC). Replace solenoid. | | E-030 | Digital Tension Motor Limit Error (2021 specific) | The tension control stepper motor over-rotated or hit a physical stop due to thread dust buildup. | Clean thread tension disks. Run “Tension Calibration” from panel: Parameter P-65->1, then confirm. | | E-033 | Main PCB Overheat | Internal temperature of control box exceeds 85°C (185°F). | Clean ventilation fan filter. Move machine away from heat source (steam iron stations). Allow 30 min cool down. | | E-040 | Synchronizer Signal Fault | Timing belt between upper shaft and synchronizer has slipped or broken. | Remove top cover. Check synchronizer belt tension. Replace belt (Part# SIR-818-BT). | | E-045 | Safety Switch Activated | Looper cover or front safety door is open while machine is running. | Close all safety covers. Check magnetic reed switch continuity. Bypass only for testing. | | E-050 | EEPROM Data Corruption | Factory settings lost due to electrical spike or firmware glitch. | Reset to factory defaults: Power off, then press and hold “RESET” + “S” while turning on. Re-enter all P-values. | | E-099 | General System Fault | Multiple conflicting errors. Often a dying main capacitor on the power board. | Call certified Siruba technician. Replace main filter capacitor (450V, 220µF). |

A batch of power boards produced in early 2021 used capacitors from a sub-supplier. These fail after 8-10 months of continuous use. Symptoms: random E-099, then failure to power on. Fix: Replace the main filter capacitor (digikey part # 493-15855-ND) or order updated PCB (Siruba # PCB-818-21B). siruba+l818fm1+error+list+2021

Many 2021 units shipped with a more sensitive Hall sensor. After a few months, the magnet on the handwheel weakens or shifts. Fix: Re-calibrate using the manual “Needle Positioning” mode (Parameter P-15: Adjust needle up/down angle to 145° and 325° respectively).

Menu → Diagnostics → Error List → Select error code → View details Below is the exhaustive error table for the Siruba L818FM1

The 2021 model introduced a digital stepper motor for thread tension. Dust from high-speed overlocking (especially on denim or canvas) jams the motor. Fix: Weekly cleaning of the tension unit with a brush and setting P-65 to “2” to increase tolerance margin.

| Error Code | Message | Possible Cause | User Action | |------------|---------|----------------|--------------| | E-01 | Motor overload | Thread tangled, material jam | Remove fabric/thread, restart | | E-03 | Needle position sensor error | Sensor dirty/misaligned | Clean sensor, recalibrate | | E-05 | Foot lift solenoid failure | Solenoid stuck or disconnected | Check wiring, replace solenoid | | E-07 | Thread trimmer error | Knife stuck, magnet switch fault | Clean trimmer mechanism | | E-08 | Low voltage (under 180V) | Power supply unstable | Check mains voltage | | E-10 | Main motor encoder fault | Encoder disconnected/damaged | Replace encoder board | | E-12 | Control panel communication lost | Cable loose or panel faulty | Reconnect panel cable | | E-15 | Overcurrent | Short in motor or driver | Cycle power; if persists, service | A batch of power boards produced in early

| Error Code | Meaning | Probable Cause | Action | |------------|---------|----------------|--------| | E-01 | Power supply abnormality | Voltage too high/low, unstable input | Check input voltage (220V ±10%), inspect power cord and stabilizer | | E-03 | Motor lock / overload | Thread jam, dust buildup, or mechanical binding | Turn off power, clean hook area, rotate handwheel manually, remove jam | | E-05 | Positioning sensor failure | Magnet misaligned or sensor disconnected | Reconnect or replace position sensor; check magnet position on handwheel | | E-07 | Foot lift motor error (if equipped) | Overcurrent or limit switch not triggered | Check foot lift solenoid/motor, linkage, or control board fuse | | E-08 | Needle up/down sensor error | Sensor failure or no signal | Inspect needle position sensor wiring; recalibrate | | E-10 | Communication error | Loose connection between control box and panel | Reseat panel cable; check for broken wires | | E-12 | Thread trimmer malfunction | Solenoid stuck or binding | Check trimmer solenoid, connecting rod, and return spring | | E-15 | Overcurrent (motor) | Excessive load or inverter fault | Reduce sewing speed; check motor driver board | | E-17 | Memory error | Control PCB EEPROM corruption | Reset to factory settings; replace main board if persists |