When the control box detects an issue, the error code will typically flicker on the control switch panel display .
: If you tilt the head back to adjust the bobbin winder or hook timing, the microswitch opens.
Clean any dust or oil out of the optical sensor window inside the handwheel synchronizer module.
| 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 | — |
: A common error where the motor is physically locked or the sewing machine is jammed. Check for thread caught in the gears. siruba+l818fm1+error+list+2021
For more complex repairs, it is always recommended to consult the official or a certified technician to avoid damaging the delicate electronic components of the direct-drive system.
: The most frequent culprit is nested thread wrapping tightly around the rotary hook basket. Turn the power off, tilt the machine head back, and manually clear out any thread shards.
Install a dedicated servo voltage stabilizer if your factory grid experiences surges.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. When the control box detects an issue, the
: A bent or broken needle can cause mechanical resistance. Replace the needle if you suspect it is causing jams.
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Ensure the machine is properly lubricated.
The control box for this machine usually displays error codes via a 2-digit LED display (e.g., E01, E05) or flashes specific LED indicators. | Code | Description (Original Text) | Recommended
If you are seeing a blinking light or an alphanumeric code on your Siruba L818FM1’s control panel, you are likely dealing with a system error. This is your definitive guide to diagnosing, understanding, and resolving the most common fault codes reported for this specific model year.
The control box cannot read the position data from the motor's internal encoder. This breaks the feedback loop required for speed control and needle positioning. Resolution:
The automatic thread cutting or production counter has reached zero.
The encoder signal loop is broken, loose, or disconnected entirely. How to fix: Shut down the system power supply completely.