The needle bar position error. The machine cannot detect the top or bottom position of the needle. Working Solutions:
1. Power down the machine completely.2. Check the encoder/synchronizer wire routed near the handwheel.3. Reseat the plug into the control box securely.4. Tighten any loose mounting screws on the handwheel bracket. Encoder Signal Failure
If the motor stalls under heavy load or cannot turn at startup, it triggers an to prevent overheating.
Verify that all cable connections between the motor, foot pedal, and controller are firm and undamaged.
Re-lubricate the hook assembly with a few drops of white sewing oil. siruba l818fm1 error list work
Dust on internal photo-sensors or misaligned data connector pins.
The electronic braking system failed to stop the motor at the designated time.
The position detector (synchronizer) signals are broken, or the connector is loose. The machine does not know where the needle is.
Open the slide plate and inspect the bobbin case, hook assembly, and thread trimmer area for thread jams. The needle bar position error
Motor encoder signal is missing or corrupted. Often requires a cable check or motor replacement. Module Abnormal
For a complete list of parameters, sub-codes, and advanced servo system warnings, refer to the or consult your local Siruba distributor.
: Often caused by incorrect needle insertion (flat side should face the back), using a bent needle, or improper threading.
In addition to the common error codes listed above, there are several advanced error codes that may require more technical expertise to troubleshoot: Power down the machine completely
Loosen the switch bracket, realign it so the pin is depressed when the machine is flat, and re-tighten the assembly.
The Siruba L818F-M1 Go to product viewer dialog for this item.
Always disconnect the power supply before opening the machine head cover or checking electrical connections. Residual voltage in capacitors can cause shock even after power is disconnected.