SunStar SPS/C-B1201 SERIES

Questions and Answers

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josephblairAug 21, 2025
What to do if my SunStar SPS/C-B1201 Sewing Machine thread breaks?
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  yhartAug 21, 2025
  If your SunStar Sewing Machine experiences thread breaks, several factors could be responsible. It could be due to incorrect thread insertion or wrong needle installation (height or direction), so try reinserting the needle and threads. A damaged needle (bent, cracked, or with a distorted tip) can also cause this, so replace the needle if necessary. Check the thread tension, as excessive tension in the upper and lower threads or in the thread take-up lever spring can lead to breaks. Adjust the tension accordingly. Lastly, inspect the shuttle surface spring for cracks and replace it if needed.
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Jennifer HenryAug 23, 2025
Why is the thread getting cut on my SunStar Sewing Machine?
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  Tammy PerkinsAug 23, 2025
  If the thread keeps getting cut while using your SunStar Sewing Machine, it could be due to several reasons. Ensure the thread is inserted correctly and the needle is installed properly, paying attention to its height and direction. A damaged needle (bent, cracked, or with an abraded tip) can also cause this, so replace it if necessary. Adjust the tension of both the upper and lower threads, as well as the tension and stroke of the take-up lever spring. Finally, inspect the shuttle surface spring for cracks and replace it if needed.
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amy39Aug 26, 2025
What to do if my SunStar Sewing Machine is stitch skipping?
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  Ryan FuentesAug 26, 2025
  Stitch skipping on your SunStar Sewing Machine can occur due to several factors. Make sure you are using a needle that isn't bent and is the correct size for the thread you're using; replace the needle if necessary. Check that the needle is correctly installed. Improper timing between the needle and shuttle, or an improper gap between the groove and shuttle point, can also cause this, so readjust the timing for the needle and shuttle. Also, adjust the tension and stroke of the take-up lever spring.
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Gabriel CastilloAug 27, 2025
Why does my SunStar Sewing Machine have a bad stopping position?
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  Leslie JonesAug 28, 2025
  If your SunStar Sewing Machine has a bad stopping position, it might be due to slackness in the main drive belt. Try adjusting the belt tension to resolve this. Also, check the synchro position and adjust its setting if it's improper.
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josephjacobAug 30, 2025
What causes a needle to bend on a SunStar Sewing Machine?
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  james09Aug 30, 2025
  A bent needle on your SunStar Sewing Machine can be caused by damage, such as bending, cracks on the needle hole or groove, or abrasion/transformation of the needle tip. Replace the needle if any of these issues are present. Ensure the needle is installed properly. If the needle is contacting the shuttle, adjust the distance between them correctly.
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Lisa GomezAug 31, 2025
What to do if SunStar SPS/C-B1201 Sewing Machine shows error on operation?
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  Melissa RiveraSep 1, 2025
  If your SunStar Sewing Machine is showing an error during operation, it could be due to a few reasons. Check the belt tension and condition; adjust or replace it if needed. Inspect the fuse for the main power or circuit in the controller box and replace it if there's a shortage. Also, ensure the feed bracket is within its normal limits; move it back inside the limit switch if it has deviated.
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Richard GibbsSep 3, 2025
What causes error in trimming on SunStar SPS/C-B1201 Sewing Machine?
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  Justin JacksonSep 3, 2025
  An error in trimming on your SunStar Sewing Machine can be caused by several factors. First, readjust the tension of the fixed mes if there's laxity in the exchanging tension between the movable and fixed mes. Second, if there's abrasion or a crack on the blade of either the movable or fixed mes, exchange them. Finally, readjust the position of the trimming cam if it's in the wrong position.
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whayesSep 5, 2025
Why is my SunStar SPS/C-B1201 Sewing Machine skipping stitches?
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  caldwellangelaSep 5, 2025
  If your SunStar Sewing Machine skips stitches, several issues could be the cause. A bent or improperly sized needle might be the problem, so try replacing the needle with the correct type. Ensure the needle is installed correctly; if not, reinstall it. The timing between the needle and shuttle could be off, or there might be too much clearance between the groove and the shuttle point. In these cases, adjust the timing of the needle and shuttle. Also, check the tension and stroke of the thread take-up lever spring and adjust if necessary.
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Melissa GarciaSep 7, 2025
How to fix abnormal operation of SunStar Sewing Machine?
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  Julie FischerSep 7, 2025
  If your SunStar Sewing Machine isn't operating normally, several things could be wrong. The belt tension might be too loose, or the belt could be damaged. Try adjusting the belt tension or replacing the belt. Also, check the main power or circuit for a blown fuse in the main shaft driving motor within the control box, and replace it if necessary. Finally, make sure the feed bracket is within the normal range of the threshold switch; if it has deviated, move it back to its correct position.
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Katelyn KingSep 9, 2025
Why is the stop position incorrect on my SunStar SPS/C-B1201?
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  Elizabeth AndersonSep 9, 2025
  If the stop position on your SunStar Sewing Machine is incorrect, it could be due to a loose main driving belt. Try adjusting the belt tension to correct this. Another possible cause is an improper position of the synchronizer; in this case, adjust the position of the synchronizer.