Siruba+l818fm1+error+list+2021 -

There is a communication breakdown between the motor and the control box. Ensure the motor connector is plugged in securely.

: This often indicates the power voltage is too low or the sewing machine load torque is too high (mechanical bind). It can also mean the presser foot was not lowered before starting. siruba+l818fm1+error+list+2021

Industrial sewing computer boards are sensitive to grid drops. Running your Siruba machines on a stabilized line protects the internal IPM module from blowing ( Err-01 / Err-02 ). There is a communication breakdown between the motor

| Error Code | Meaning | Likely Cause & Solution | | :--- | :--- | :--- | | | Machine head locked / overload | Thread tangled in hook, foreign object in rotary hook, or mechanical seizure. Turn off power, clean hook area, and check for free rotation. | | E-02 | Motor position signal error | Faulty synchronizer or encoder. Check the position sensor near the handwheel. | | E-03 | Overvoltage (power supply) | AC input voltage too high. Use a voltage regulator. | | E-04 | Undervoltage | AC input voltage too low. Check power source and cables. | | E-05 | Overcurrent | Motor short circuit or driver board failure. Stop immediately; service required. | | E-06 | Motor overspeed | Control board failure. Turn off machine, restart. If persists, replace control box. | | E-07 | EEPROM (memory) error | Settings corrupted. Reset to factory defaults via panel (see manual). | | E-08 | Communication error (panel to control box) | Loose flat cable between panel and main box. Reconnect securely. | | E-09 | Needle up/down position not found | Magnet on handwheel missing or sensor faulty. | | E-10 | Presser foot lift motor error (if equipped) | Foot lift solenoid stuck or jammed. | | E-11 | Thread trimmer solenoid error | Trimmer stuck or solenoid coil open circuit. | | E-12 | Winding stop sensor error | Bobbin winder mechanism faulty or sensor disconnected. | It can also mean the presser foot was

Errors like ERR3 or E7 often relate to the needle bar not being at the correct "Up" or "Down" position.

Check the hook area, needle bar, and thread take-up for tangled thread or fabric.

Ensure the magnet on the presser foot sensor is correctly positioned. Check Wires: Verify the presser foot connection cable. General Troubleshooting Steps for 2021 Siruba Models