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: The L818FM1 model by Siruba is likely a specific type of sewing machine designed for particular sewing tasks. Without specific details, it's reasonable to assume it's a model aimed at professional or industrial use, given the alphanumeric designation which often signifies the machine's capabilities, size, and type.

If you are using a pre-set production counter, it has reached zero and stopped the machine.

The motor position sensor (encoder) cannot locate the needle.

If you can tell me the appearing on your screen, I can provide the exact parameter adjustment needed to fix it. Would you also like the parts list for the L818F-M1 trimmer assembly?

: Verify that the motor encoder connector is securely inserted. E4: Locked Motor or Connector Error siruba+l818fm1+error+list+2021

When system parameters fall outside safe operating limits, the control box displays specific error codes to prevent hardware damage. This technical guide breaks down the full list of operational errors, sensor malfunctions, and hardware faults for the Siruba L818F-M1 system, providing step-by-step diagnostic and repair procedures. 1. Primary Operational & Voltage Error Codes

This comprehensive technical guide outlines the common error codes, diagnostic procedures, and mechanical troubleshooting steps for this machine. Master Error Code Reference Table

These codes generally point to power supply fluctuations, heavy mechanical loads, or direct drive motor issues. Err-01: Hardware Overcurrent / Module Protection

| Code | Description (Original Text) | Recommended Action (Paraphrased) | | :--- | :--- | :--- | | 600 | 发生面线断裂 | Press RESET. Then press KEY_STEP_BACK and move the presser foot to continue sewing. | | 690 | 中压脚电机找不到原点 | Failure of the middle presser foot motor or its encoder. | | 691 | 底线夹线马达非正常停止 | Turn off power, clear lint, and check main board sockets P20/P4. | | 693 | 中压脚电机过电流 | Failure of the middle presser foot motor or its control board. | | 697 | 无法检测到中压脚电机运动 | Failure of the middle presser foot motor, its encoder, or its control board. | | 698 | 中压脚电机失控 | Failure of the middle presser foot encoder or control board. | : The L818FM1 model by Siruba is likely

Ensure no threads are stuck in the hook, bobbin area, or feed dog.

Carefully extract any compressed thread or lint buildup from the hook race using tweezers.

The external synchronizer attached to the handwheel is misaligned, faulty, or disconnected. The system cannot determine if the needle is in the fully up or fully down position. Resolution:

Without access to specific data from 2021, I recommend checking: The motor position sensor (encoder) cannot locate the needle

Check the power module connections on the main circuit board for burn marks or a distinct chemical odor.

| Code | Description (Original Text) | Recommended Action (Paraphrased) | | :--- | :--- | :--- | | 820 | 花样队列空 | — | | 821 | 花样无结束码 | — | | 822 | 花样无停车码 | — | | 830 | 花样数据溢出 | — | | 850 | CAN总线应答错误 | — | | 901 | X电机脉冲错误（内部错误） | — | | 902 | Y电机脉冲错误（内部错误） | — | | 903 | 剪线电机脉冲错误（内部错误） | — | | 904 | 中压脚电机脉冲错误（内部错误） | — | | 905 | 抓线电机脉冲错误（内部错误） | — | | 906 | 内部错误 | — | | 911–914 | 内部错误 | — |

Wait for the machine to cool down if the motor is overheated.

The presser foot or clamp function is not operating within the expected parameters.

error list to help machine operators, garment factory mechanics, and technicians quickly diagnose errors, perform quick fixes, and minimize production downtime. Quick Reference Summary Table

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 ).