Symptom | Possible cause |
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The fabric is | The thread tension is incorrect. | Adjust the tension of the upper thread. | 29 | |||
wrinkled. |
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| You have not threaded the upper thread | Correct the upper threading. | 18 | |||
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| You have not used the right combination of | Choose a thread and needle that are | 24 | |||
| fabric, thread and needle. | appropriate for the type of fabric. | ||||
Stitches are |
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skipped. | The needle is bent or blunt. | Replace the needle. | 7 | |||
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| The needle is incorrectly installed. | Correctly install the needle. | 7 | |||
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| Dust has accumulated under the needle | Remove the needle plate and clean the | 43 | |||
| plate or in the bobbin case. | plate and the bobbin case. | ||||
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| Raise the needle by turning the |
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The needle | The needle has not been raised to the | handwheel toward you | 20 | |||
correct position. | (counterclockwise) so that the mark on | |||||
threader can |
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| the wheel points up. |
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not be used. |
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| You have not inserted the needle properly. | Insert the needle properly. | 7 | |||
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| The presser foot that you are using is not | Attach the presser foot that is correct |
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| for the type of stitch that you want to | – | ||||
| correct for the type of stitch. | |||||
| sew. |
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The stitch is |
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The thread tension is incorrect. | Adjust the tension of the upper thread. | 29 | ||||
not sewn | ||||||
correctly. |
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| Remove the tangled thread. If the |
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| The thread is tangled. | thread is tangled in the bobbin case, | 43 | |||
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| clean the bobbin case. |
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| The stitch is too fine. | Lengthen the stitch length. | – | |||
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| The feed dogs are lowered. | Slide the feed dog position switch to | 13 | |||
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The fabric | You have not used the right combination of | Choose a thread and needle that are | 24 | |||
fabric, thread and needle. | appropriate for the type of fabric. | |||||
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does not feed. |
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The thread is tangled, for example, in the | Remove the tangle thread. If the thread | 43 | ||||
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| race. | is tangled in the race, clean the race. | ||||
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| The presser foot you are using is not | Attach the presser foot that is correct |
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| appropriate for the type of stitch that you | for the type of stitch that you want to | 40 | |||
| want to sew. | sew. |
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Ahigh- pitched sound
is produced | Dust has accumulated in the feed dogs or | Clean the bobbin case. | 43 | |
while sewing. | ||||
in the bobbin case. | ||||
A rattling |
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noise is |
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produced. |
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