What to do if SunStar SWF/C-UK1504 Sewing Machine has trimmer return failure?
- BBenjamin CummingsSep 12, 2025
If your SunStar Sewing Machine experiences trimmer return failure, it could be due to a poor connection of the sensor, a bad circuit board, a bad sensor or sensor position, or a dirty area around the sensor. To address this, check the connection, change the circuit board, change the sensor, clean around the sensor, or adjust the location of the sensor unit.