Why Does My Sewing Machine Keep Cutting the Thread?

There could be several reasons why your sewing machine keeps cutting the thread. Here are some of them:

Key Takeaways

  1. Check for fluff and lint deposits.
  2. Inaccurate thread tension.
  3. Varying thread diameter and poor thread quality.
  4. The thread is not caught up in your bobbin.
  5. Your top thread is not tangled.
  6. Your machine needs to be cleaned.
  7. Your machine’s tension setting is wrong.

Fluff and Lint Deposits.

It’s essential to check for fluff and lint deposits before you start sewing. Don’t worry if you find them; you can easily remove them from your machine.

First, turn on the machine and allow it to warm up for 10 minutes before starting your project. Then turn off the machine and unplug it from its power source (the wall outlet). This will prevent any accidental electrical shorts that could damage components inside your sewing machine.

Next, you’ll want to use a cotton swab to remove any dust or lint that may have accumulated around the machine’s moving parts. If you find fluff deposits in your bobbin area, gently use an old toothbrush dipped in warm water to remove them. Ensure all the components are dehydrated before plugging in your machine and starting a new project.

Inaccurate Thread Tension.

You can tell if your sewing machine is having trouble because it cuts the thread too often. If you have a bobbin with a lot of slack, there was not enough tension on the thread when it was installed.

If you’ve done this and your sewing machine still cuts the thread, then it’s likely that either:

  • The tension setting is too loose (meaning too much slack)
  • The tension setting is too tight (meaning nothing to spare)

Varying Thread Diameter and Poor Thread Quality.

The first step to ensuring your sewing machine performs at its best is checking the thread diameter. If you have a bobbin that is too large, it can lead to poor stitching and cutting of the thread. If a bobbin is too small, it will cause uneven tension in your stitches, leading to snags and frays.

The Thread is Not Caught Up in Your Bobbin.

If your machine is cutting the thread and you haven’t changed out any of the parts, the first thing to do is check the bobbin. You may have a broken or cracked case, or it could simply be that your bobbin is caught up in something else (like another part of your machine).

Next, check for loose threads around each needle. If any loose ends are hanging out of one side of this hole, this will also cause problems with sewing machines because they’re designed so that only one piece can go through at once!

It’s important not to fix this problem until after you’ve taken care of everything else below; otherwise, we might replace our entire sewing machine instead!

Top Thread is Not Tangled.

Your machine cuts the thread because the bobbin has been turned off and is not being fed, or the tension on your top thread is too loose.

Check your needle: If you’ve tried everything else and still can’t get it working correctly, check to see if there’s a clog in your needle hole. Make sure that no part of it protrudes into your work area; otherwise, this can cause damage to other fabrics while sewing.

Check for knots in the thread: Loose tension on top may also be causing problems. It could mean some of those stray floss ends had tangled together when they came out of their packet or packaging material (like spools). If this happens again and again without fail, try using different types of needles with varying threads until one works well enough for both tasks!

Your Machine Needs to Be Cleaned.

If your sewing machine is cutting the thread, it’s probably because you aren’t cleaning it properly. You can do this or take your machine to a professional repair shop.

  • Cleaning the bobbin case: You should clean out the case after each use by removing all of its screws and gently wiping it down with a rag or cloth until they look shiny again. Then put everything back together again, so there are no loose pieces around (this ensures that they won’t cause any problems).
  • Cleaning the bobbin: Take apart your sewing machine’s bobbin winder device and thoroughly clean all parts inside with warm water and soap before putting everything back together, especially when it connects with other components on top of each other like those mentioned above!

Your Machine’s Tension Setting is Wrong.

If your tension is too loose, the thread will slip through the needle and not be pulled through correctly. You can adjust this setting by moving the dial at the top of your machine until it feels right for you. If this doesn’t help, then try using a different size needle or changing to a more considerable stitch length (the distance between stitches).

Your Presser Foot Needs to Be Dropped.

If you aren’t using your presser foot properly, it can cause the stitching to break. The presser foot is the part of the machine that holds the fabric in place while sewing. It has different parts, and each one is used for another task:

  • The needle threading section holds stitches together and feeds them through your machine.
  • The bobbin winding mechanism winds bobbins up, so they’re ready to sew again when needed. If this part isn’t working correctly, then your machine won’t be able to make new bobbins until something breaks down again (more on this later).

The presser foot is the part that holds the fabric down while you sew. You can use it to hold the fabric in place when straight sewing lines, curves, or decorative stitches. It also helps your machine move smoothly through layers of fabric without ripping them apart.


We hope this article explains why your sewing machine might be cutting the thread. Remember that other things can cause this, such as humidity or a dirty needlepoint foot. Happy Sewing!

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