PR-620/620C/600II/600IIC
FAQs & Troubleshooting |
"Check if thread is broken." appears on the LCD.
The upper thread was cut or the thread came out of the thread tension disc or the thread guide.
- The machine is not threaded correctly.
- Check that the thread is under the upper and middle thread guide and correctly thread the upper thread.
The bobbin thread is broken or has run out.
- Check that there is thread on the bobbin and that approximately 50mm(2 inches) of thread has been pulled out, and then re-install the bobbin.
If the start/stop button is pressed while the machine is not correctly set up or if an incorrect operation is performed, the machine stops and informs you of the error with a buzzer and an error message.
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