When your machine isn't functioning correctly but hasn't thrown a specific code, follow these standard diagnostic steps recommended in the Siruba L818F Instruction Manual : DL720 Series
Verify that industrial power rails match machine requirements. Securely push power connections in. Motor Lock / Mechanical Jam
: Only use original Siruba L818F parts like the P701 presser foot to maintain factory specifications. Siruba L818F-BM1BH1 Instruction Manual.pdf siruba l818fm1 error list work
The means the system cannot find its needle-up or needle-down parking positions, which blocks automatic thread trimming.
: Turn off the power, wait 30 seconds, and restart. If the error persists, the control box may have a short circuit and requires replacement. E17: Safety Switch Error When your machine isn't functioning correctly but hasn't
Interrupted UP/DOWN position detector signals or a cut cable line.
Keep the oil level optimal for the oil pan, as outlined in the Siruba L818F-DM1 Instruction Manual . Siruba L818F-BM1BH1 Instruction Manual
Faulty synchronization sensor; bad motor encoder cable link.
While Siruba uses proprietary error codes, the L818F-M1 can show a range of messages. Based on technician feedback, here is the most common error list:
Clean out any packed lint, thread fragments, or manufacturing residue. Snap the connector back into place until it clicks.
Motor encoder signal is missing or corrupted. Often requires a cable check or motor replacement. Module Abnormal