Baby Lock Sofia BL137A2 User Manual (English)

Questions and Answers:

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Denise ZamoraAug 21, 2025
Why Baby Lock Sewing Machine stitches are skipped?
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  johnsonaaronAug 21, 2025
  Skipped stitches on your Baby Lock sewing machine could be due to: the upper thread not being threaded correctly (correct the threading), the combination of fabric, thread, and needle not being correct (choose the right combination), the needle being bent or blunt (replace the needle), the needle being incorrectly installed (install it correctly), or dust accumulation under the needle plate or in the bobbin case (remove the needle plate cover and clean the race).
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Daniel SandersAug 23, 2025
Why Baby Lock Sewing Machine does not operate?
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  Mark MurilloAug 23, 2025
  Your Baby Lock sewing machine might not be operating due to several reasons: the machine isn't turned on (turn it on); the start/stop button wasn't pressed (press it); the presser foot lever is raised (lower it); the start/stop button was pressed while the foot controller is connected (disconnect the foot controller to use the start/stop button); or the bobbin winder shaft is on the right side (slide it to the left).
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James YoungAug 26, 2025
What to do if upper thread breaks on Baby Lock Sofia BL137A2?
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  Ricky BrowningAug 27, 2025
  If the upper thread is breaking on your Baby Lock sewing machine, consider these potential causes: the upper thread wasn't threaded correctly (correct the upper threading, and use the correct spool cap), there are knots or tangles in the thread (remove them), the selected needle isn't appropriate for the thread (select an appropriate needle), the upper thread tension is too tight (loosen it), the thread is tangled (remove the tangled thread and clean the race), the needle is bent or blunt (replace it), the needle is incorrectly installed (correctly install it), or a bobbin designed specifically for this machine is not used (use the correct bobbin). For scratched presser feet or bobbin cases, consider replacing them by contacting your authorized retailer.
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Megan CarlsonAug 27, 2025
Why is my Baby Lock Sewing Machine fabric wrinkled?
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  Suzanne LeeAug 28, 2025
  If the fabric is wrinkling while using your Baby Lock sewing machine, it could be due to a few reasons: the upper thread wasn't threaded correctly, or the bobbin is incorrectly installed (correctly thread the upper thread and install the bobbin thread correctly); the spool is incorrectly installed (correctly install the spool); the combination of fabric, thread, and needle isn't correct (select the correct combination); the needle is bent or blunt (replace the needle); the stitch is too coarse for thin fabrics (shorten the stitch length or use stabilizer material); or the thread tension is incorrect (adjust the upper thread tension).
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Michaela LopezAug 29, 2025
Why Baby Lock Sewing Machine bobbin thread does not wind neatly?
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  lisa95Aug 29, 2025
  If the bobbin thread isn't winding neatly on the bobbin of your Baby Lock sewing machine, it might be because the thread isn't passed through the bobbin-winding thread guide correctly (correctly pass the thread), the bobbin spins slowly (move the sewing speed controller to the right for faster speed), or the thread wasn't initially wound correctly (wind the thread around the bobbin five or six times clockwise).
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Logan GonzalesAug 31, 2025
What to do if lower thread is tangled on Baby Lock Sewing Machine?
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  Melissa KnightAug 31, 2025
  If the lower thread is tangled or breaking in your Baby Lock sewing machine, it could be due to the bobbin thread being incorrectly installed (correctly install the bobbin thread), the bobbin is scratched or doesn't rotate smoothly (replace the bobbin), the thread is tangled (remove the tangled thread and clean the race), or a bobbin not designed specifically for this machine is being used (use the correct bobbin).
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Michele GaySep 1, 2025
Why is my Baby Lock Sofia BL137A2 thread tension incorrect?
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  Joseph RoseSep 1, 2025
  Incorrect thread tension on your Baby Lock sewing machine can stem from a few issues: the upper thread wasn't threaded correctly (correct the upper threading, ensuring it's on the thread guide spring); the bobbin thread is incorrectly installed (correctly install it); the fabric, thread, and needle combination isn't right (select an appropriate combination); the presser foot holder is incorrectly installed (correctly install it); the thread tension itself is incorrect (adjust the upper thread tension); or an incorrect bobbin is being used (use a bobbin designed specifically for this machine).
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victoriajonesSep 3, 2025
Why Baby Lock Sewing Machine fabric does not feed?
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  Jacob CamachoSep 3, 2025
  If the fabric isn't feeding through your Baby Lock sewing machine, check if the feed dogs are lowered (slide the drop feed lever to the right), the stitch is too fine (lengthen the stitch), the presser foot isn't appropriate for the stitch (attach the correct foot), or the thread is tangled (remove the tangled thread and clean the race).
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David CampbellSep 5, 2025
Why does Baby Lock Sewing Machine make a high-pitched noise?
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  Keith OsborneSep 5, 2025
  A high-pitched noise from your Baby Lock sewing machine could indicate dust accumulation in the feed dogs or bobbin case (clean the race), incorrect upper thread threading (correct the upper threading), or a scratched or burred bobbin case (consider replacing the bobbin case by contacting your authorized retailer). Also, ensure you are using a bobbin designed specifically for this machine.
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Michelle JohnsonSep 7, 2025
Why Baby Lock Sewing Machine thread is tangled on the wrong side of the fabric?
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  Michael BriggsSep 7, 2025
  If the thread is tangling on the wrong side of the fabric with your Baby Lock sewing machine, the upper thread may not have been threaded correctly, so correct the upper threading.

Baby Lock Sofia BL137A2 Specifications

General

Number of Stitches	137
Bobbin Type	Drop-In Bobbin
Needle Threader	Automatic
Stitch Select Display	LCD Screen
Maximum Stitch Width	7mm
Maximum Stitch Length	5mm
Speed Control	Yes
Start/Stop Button	Yes
Needle Up/Down	Yes
Work Light	LED
Built-in Stitches	137
Buttonhole Styles	7
Sewing Speed	850 stitches per minute
Presser Feet	7
Feed System	7-point Feed Dogs