This message is displayed when the software detects that the selector is not at home position, or if the software detects problems moving the selector motor. This may occur when excess thread or a foreign object jams the selector, a mechanical component is damaged/defective, or an electrical device is malfunctioning.
Use the following chart to troubleshoot selector errors. To continue sewing from the same point after these repairs have been made, install all covers and press the Start button.
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Step |
Action |
Symptom |
Next Action |
|
1 |
Check mechanical system for binding, obstructions, or damaged parts. Press the E-stop button or switch the machine off, then remove the needle plate and lower arm rear cover. Test for smooth operation by rotating the selector eccentric by hand. The eccentric should rotate from the home position to full extension smoothly. |
Obstruction found |
Remove the obstruction and re-test for smooth operation. |
|
Selector eccentric moves but selector does not move |
Push-Pull Cable is damaged, cable clamp is loose, or cable has disengaged from selector. Repair or replace parts as necessary and re-test. |
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|
Trimmer assembly is jammed |
Disassemble, clean, and inspect trimmer assembly as described in the Trimmer Section of the Maintenance Schedule. |
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Mechanical system checks out okay |
Go to Step 2. |
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|
2 |
Test electrical components for proper operation. Test selector motor and selector function using the steps described in Trimmer Function Test. |
Selector Eccentric does not turn |
Motor is not functioning. Check to see that the motor harness is undamaged and is properly attached to the Trimmer Control PCB. Motor, harness, or Trimmer Control PCB may be defective. |
|
Selector and eccentric operate properly |
Go to Step 3. |
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3 |
Test the optical sensor using the steps described in Optical Sensors Test. |
Optical sensor is dirty |
Clean or replace optical sensor and test for proper operation. |
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Optical sensor is defective |
Replace optical sensor and test for proper operation. |
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Optical sensor is operating properly |
Go to Step 4. |
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4 |
Verify proper connection between the selector motor and the optical sensor to the Trimmer Control PCB located on the underside of the trimmer drive bracket. Removal of the trimmer drive bracket will be required. Also verify connection between the Trimmer Control PCB and the Main Control PCB. |
Loose connection |
Secure the connectors. Use cable ties as needed to properly route cables. Reassemble and test for smooth operation. |
|
No motion of the selector or the Selector Not Home error persists |
Go to Step 5 |
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5 |
Inspect the harnesses for bare, broken, or pinched wires, chaffing or other damage. |
Harnesses are damaged |
Repair or replace damaged wire harnesses as needed. test for smooth operation. |
|
No motion of selector or Selector Not Home Error persists |
Contact Melco Technical Support. The Main Control PCB or the Trimmer Control PCB may need replacement. |
