Innov-is 900D
FAQs & Troubleshooting |
"Check and rethread the upper thread." message appearing on the LCD. What does it mean and how do I clear it?
Upper thread broken.
Upper thread not set up correctly.
Upper thread has run out.
Be sure to rethread the machine.
If you press the start/stop button without rethreading the machine, the thread tension may be wrong or the needle may break and cause injuly.
Each time a key is pressed or an incorrect operation is performed, a beep is sounded.