Manually rotate the handwheel to ensure free, uninhibited movement before restoring power. Resetting the Control Box Parameters (Factory Reset)
For the most accurate technical schematics of your 2021 model, it is recommended to consult the official Siruba manual.
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. Replace the main filter capacitor (digikey part # 493-15855-ND) or order updated PCB (Siruba # PCB-818-21B). siruba+l818fm1+error+list+2021
Adjust the synchronizer positioning settings via the control panel parameters if the timing has drifted. E05 / Err-05: Motor Module / IPM Failure
Has any been performed on the unit? Share public link Manually rotate the handwheel to ensure free, uninhibited
The feeding mechanism is stuck, overloaded, or exceeding its programmed limits.
Finally, it's important to remember that a machine's behavior can change with a software update. A 2021 model year machine might behave slightly differently from a 2020 or 2022 model due to firmware revisions. User reviews have noted that some known issues are resolved with newer firmware, so keeping your machine updated is a good policy. The error codes and fixes described here are accurate for the vast majority of L818FM1 machines operating with standard control software, but when in doubt, the manual should always be your final authority. These fail after 8-10 months of continuous use
The magnetic safety switch on the looper cover door is prone to magnet misalignment after repeated opening/closing. Glue a small neodymium magnet (5mm x 2mm) onto the door’s existing magnet to strengthen the signal.
Many electronic errors stem directly from mechanical resistance. Incorporating these daily practices prevents system errors: Clearing Thread Jams in the Rotary Hook Remove the throat plate and bobbin case.
Issue with the motor encoder connector or data cannot be read. Needle Position Error Needle bar is not in the correct position. ERR17 Emergency Switch The emergency stop switch has been pressed. ERR34 Power Off System has detected a power-down state. Key Features of the L818-M1
The control board cannot communicate with the motor encoder (the device that tracks position). Troubleshooting: