How To Fix Bobbin In Sewing Machine

Having a sewing machine that doesn’t work properly can be a source of frustration. In this article, we will explore how to fix bobbin in sewing machine, the components of the bobbin and how to troubleshoot and repair any issues with the bobbin. By the end of this article, readers should have the knowledge and confidence to troubleshoot and address any issues they may have with their sewing machine.

A bobbin is a small, cylindrical spool that stores thread underneath the fabric. This thread provides stability and helps to sew seams and hems, as well as decorative stitches. As bobbins are constantly in use for sewing, it is important to familiarise yourself with how to fix a bobbin when it malfunctions. Common problems include thread tangling, thread jamming, and problems with the tension.

An easy way to begin troubleshooting bobbin problems is by checking the machine itself. For many machines, this is as simple as making sure that the bobbin has been installed properly. It is essential to ensure that the bobbin is sitting flush in the bobbin case and that the thread is running freely. Once the bobbin is seated in the correct position, take a moment to check the tension settings. It is often best to start with the manufacturer’s recommended tension setting and then fine-tune as needed.

If the tension settings are adjusted correctly, then there may be a problem with the bobbin itself. If the bobbin appears to be misaligned or damaged, it is best to replace it with a new one. This is usually a straightforward process and can easily be done by popping off the lid of the bobbin case and replacing the bobbin with a new one.

If the bobbin looks unaltered and the tension settings appear to be correct, then it is likely there is a problem with the thread itself. Poorly wound bobbins or thread that has been in storage for a long time can cause thread tangles. If this is the case, then it is best to rewind the bobbin or replace the thread entirely. If possible, avoid using thread too thin or too thick for the sewing project, as these can also cause problems.

It is recommended that readers take additional steps to prevent bobbin problems. This can include regularly cleaning the bobbin case, changing the needle in the machine when necessary, and ensuring the thread is correctly aligned. All of these steps can help to ensure that the sewing machine is running smoothly and efficiently.

Thread Jamming

Thread jamming can occur when the thread gets caught in the bobbin area and cannot be manually released. This can be caused by a number of factors, including poor tension settings, incorrectly installed bobbins, or thread thick enough to jam the needle. If the thread jamming cannot be removed by hand, then it is best to use a thread pick or thin tool to carefully remove the jammed thread.

In some cases, thread jamming can also be caused by a blunt or worn-out needle. As the needle wears over time, it can become less effective at cutting the thread and can cause it to become jammed within the bobbin area. If this is the case, then it is best to change the needle as soon as possible to avoid further jamming.

Finally, it is worth remembering that thread jamming can also be caused by the fabric itself. Poorly cut or extremely thin fabrics can often catch on the needle and cause the thread to become jammed within the bobbin area. If this is the case, then an alternative fabric should be considered.

Controlling Tension Settings

The tension settings of a bobbin are an important factor in ensuring that the bobbin thread is wound properly. If the tension settings are too tight or too loose, then this can cause problems with the thread, such as thread breakage, tension-related issues, or even needle jamming. Therefore, it is essential to be familiar with the tension settings of the bobbin and make sure they are correctly adjusted.

Individual sewing machines may differ slightly, but in general, the tension settings are adjusted manually. This can be done by turning the tension wheel or by using a tension control knob. These will help to adjust the thread tension until it is tight enough to keep the thread taut during sewing, but not so tight as to cause excessive tension on the fabric.

Unfortunately, many sewing machines do not have the ability to adjust the tension manually. In this case, it is necessary to use a tension tester. This is an inexpensive tool that can be used to measure the tension of the thread and ensure it is at the correct level.

Once the tension has been adjusted, it is essential to test the sewing machine on a scrap piece of fabric to ensure that the thread tension is correct. Any problems with the bobbin can be easily identified by testing on a fabric sample first. If any problems do occur, then it may be necessary to make further adjustments to the tension settings.

Cleaning the Bobbin Case

Cleaning the bobbin case is an essential step for ensuring that the bobbin functions properly. Over time, the bobbin case can become clogged with lint and dirt, which can cause the thread to become tangled or misaligned. Therefore, it is important to regularly clean the bobbin case to avoid any potential problems.

Cleaning the bobbin case is best done by using a soft brush. This can help to remove any lint or dirt that may be caught in the case. Specialised sewing machine cleaning kits can also be purchased if needed. Once the bobbin case has been brushed clean, it is then necessary to make sure that the tension settings are correctly adjusted.

Another way to avoid bobbin issues is to use the correct thread for a particular project. Threads of varying thickness can be used for different sewing tasks, and it is essential to be aware of the best type of thread for a specific job. If possible, it is best to avoid thread that is too thin or too thick for the project as this can cause bobbin issues.

Removing Thread Tangles

Thread tangles can cause the bobbin to malfunction and can be difficult to remove. It is important to remain patient when dealing with bobbin thread tangles and use the correct techniques for removing them. One of the most effective ways of removing thread tangles is to use a pair of tweezers to carefully remove the tangled threads from the bobbin.

Once the tangled threads have been removed, it is essential to rethread the bobbin correctly. This can be done by carefully winding the thread around the bobbin in a clockwise direction and ensuring that it is not overly tight. Once the bobbin has been rethreaded, it is then necessary to rethread the needle and try test stitching on a piece of fabric to ensure that it is working as expected.

If the thread is still tangling after rethreading the bobbin, then it may be worth replacing the thread altogether. Damaged or brittle threads are more likely to tangle, so if possible, use new or freshly wound thread when possible.


Fixing a bobbin in a sewing machine can be a complicated process, and it is important to troubleshoot any problems with patience and care. By following the steps outlined in this article, readers should be familiar with how to fix a bobbin in their sewing machine and have the knowledge and confidence to troubleshoot any issues they may have. Happy stitching!

Geoffrey Kirby is an experienced author and sewist who has been creating sewn projects for over 20 years. He has a passion for teaching beginners and inspiring more advanced sewists both online and through his writings. Outside of writing about sewing, Geoffrey loves to explore new techniques and styles of sewing that incorporate upcycling fabric remnants into sweet items with personality.

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