SunStar HC Series - User Manual

Questions and Answers

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Kristi YoungAug 22, 2025
What to do if my SunStar HC thread breaks?
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  Michael OrtizAug 22, 2025
  If the thread breaks on your SunStar Sewing Machine, consider these potential causes and solutions: * If the stitch is too small or dense, re-punch the design tape or correct the stitches on the operation box. * If thread breaks frequently in the same spot, re-punch after checking the design. * If the needle size is inadequate for the thread, change the needle. * If the needle is damaged (bent, dented, or worn), replace it. * Ensure the needle is correctly installed (height, direction, etc.). * Clean or change the needle and hook if the needle is dirty (adhesive, etc.).
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Wanda EstesSep 4, 2025
How to resolve a bad color change on SunStar Sewing Machine?
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  Peggy HensleySep 4, 2025
  To resolve a bad color change on your SunStar Sewing Machine: * Refer to user’s manual. * Run manual color change and check if signal lamps (needle set lamp & needle position lamp) blinks at correct needle position. Adjust the half-turn film. * Set it to the correct position if the needle stop is in an incorrect position. * Adjust so the take-up lever is in line with other levers in the stop position (upper shaft angle: 100°) if it's in an incorrect position. * Change fuse F3 in the joint board or check the connection if there's a fuse failure for the color change motor or a bad connection.
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Samantha VillanuevaSep 2, 2025
What to do if SunStar Sewing Machine has operation failure?
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  Sarah AyalaSep 2, 2025
  If your SunStar Sewing Machine experiences an operation failure, here are some troubleshooting steps: * Adjust belt tension or change the belt if there's loose belt tension or belt damage. * Check the fuse in the main shaft motor and change the fuse if there's a power failure or short-circuit. * Run a manual color change and check if the signal lamps (needle set lamp & needle position lamp) blink at the correct needle position. Adjust the half-turn film. Address the cause and press RESET. Check if the lamp turns green. * Check the connection of the START switch.
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Andrew ChangSep 1, 2025
Why does my SunStar HC needle keep breaking?
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  David HaleSep 1, 2025
  If the needle keeps breaking on your SunStar Sewing Machine, check the following: * Change the needle if it is bent or of bad quality. * Ensure the tip of the needle is not worn or bent. * Space the needle and the hook point if the needle touches the hook point. * Correct the installation. * Check if needle plate is unscrewed. Adjust the position of the needle bar if the needle touches the needle hole on the plate.
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adamsgregAug 30, 2025
What causes puckering on SunStar Sewing Machine and how to fix it?
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  knightkristenAug 30, 2025
  Puckering on your SunStar Sewing Machine can be caused by: * Excessive thread tension. Adjust the tension. * Excessive pressure of the presser foot. Change the presser foot spring. * Needle failure worn out/damaged needle tip needle is too large for thread. Change the needle. Use adequate size of needle. * Needle hole is too large for needle. Use adequate size of needle.
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Cynthia WrightAug 29, 2025
How to fix incorrect stop position on SunStar HC?
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  Casey MendozaAug 29, 2025
  To correct an incorrect stop position on your SunStar Sewing Machine: * Adjust the belt tension if it's loose on the main driver belt. * Adjust the encoder position or change the encoder if the encoder is in an incorrect position or is bad.
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Samantha SimpsonAug 27, 2025
Why is my SunStar Sewing Machine not trimming correctly?
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  Natalie WigginsAug 27, 2025
  If your SunStar Sewing Machine is experiencing trimming failure, here are a few things to check: * Check and change fuse F1 in the joint board if there's a short-circuit in the trimming fuse. * Check and change the solenoid and solenoid connection if there's a poor connection or quality of the trimming solenoid. * Check the connection. * Change the joint board if the trimming driver TR is damaged.
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Theresa SheltonAug 27, 2025
What to do if my SunStar Sewing Machine has poor stitch tension?
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  kimberlyfreyAug 27, 2025
  If your SunStar Sewing Machine has poor stitch tension, consider these solutions: * Adjust the upper thread tension. * Clean main and sub tension adjusters in the thread tension adjusting plate. * Adjust lower thread tension. * Clean the bobbin case and check tension on the bobbin spring. * Change to quality thread. * Adjust timing. * Oil the raceway of hook.
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Brian StricklandAug 25, 2025
What to do if my SunStar HC skips stitches?
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  wchristianAug 26, 2025
  If your SunStar Sewing Machine is skipping stitches, here are some things to check: * Change the needle if it's bent. * Adjust needle installation. * Adjust timing. * Adjust the lower dead stop. * Use a whetstone to adjust the hook point or change hook. * Adjust thread tension. * For upper thread, change bobbin or bobbin case. Select the right thread for embroidery. * Adjust stroke or tension. * Change presser foot spring if the fabric moves with the needle due to a weak or damaged presser foot.
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kevinfosterAug 23, 2025
How to troubleshoot bad stitch quality on SunStar HC Sewing Machine?
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  Blake CortezAug 23, 2025
  If you're experiencing bad stitch quality on your SunStar Sewing Machine, here's what you can do: * Correct the tape. * Adjust the tension on the X-Y belt. * Clean the X-Y rail to remove any foreign substances. * Change the circuit board. * Reduce the speed of the main shaft if the frame has a heavy load.