Singer Sewing machine upper thread breaking

A common issue with Singer sewing machines is experiencing frequent breaks in the upper thread. To prevent this from occurring, it is important to look at the tension settings, needle size or type, and thread being used. Additionally, changing out the needles regularly will help ensure that they remain sharp and effective. 

This article will provide advice on how to troubleshoot and resolve frequent breaks in the upper thread when using a Singer. With these tips in hand, your sewing machine should have no problem with the upper thread breaking. Read on to learn more!

List of the 10 common causes of upper thread breaking problems for Singer Sewing Machines

Here are some common causes of upper thread breaking problems for Singer Sewing Machines:

  1. Using the wrong type of thread for the fabric being sewn
  2. Incorrect tension settings on the machine
  3. Damaged or worn needle
  4. Improperly threaded machine
  5. Tangled or knotted thread in the bobbin area
  6. Bent or damaged needle plate or hook
  7. Sewing at a high speed or with abrupt movements
  8. Accumulated lint or debris in the machine
  9. Loose or damaged machine parts or components
  10. Using an incorrect needle size for the fabric being sewn.

It’s important to identify and address the specific cause of the upper thread breaking in order to effectively resolve the problem.

Causes of Singer Sewing machine Upper Thread Breaking

The most common causes of upper thread breaking on a sewing machine are having the needle in backwards, an improper threading, tension that is too tight, a bent or blunt needle point, thread that doesn’t match the size of the needle, a burr on the presser foot, a needle that is too long for the machine, a worn or broken take-up spring, tension discs with grooves from excessive use, and an uneven sewing speed.

Here are 9 potential factors causing the upper thread problem and how you can resolve them.

Your Singer Sewing machine Is Not Threaded Correctly

If your upper thread keeps breaking or your machine isn’t working properly, the first thing you should check is if it’s correctly threaded.

How to Correctly Thread a Singer Sewing Machine?

Disconnect the threads and rethread from the start. Make sure the take-up lever is in its highest position, attach a spool of thread, pull the thread through the tension discs and guides according to your user manual, and finally pass it through the eye of the needle. Don’t forget to leave a 4-inch tail of thread. That should do it!

Your Singer Sewing machine Thread Tension Is Too Tight. Adjusting Thread Tension on Singer Sewing Machine for Even Stitches

The tension of the thread in your Singer Sewing machine needs to be adjusted for different weights of fabric and thread. It is important to use the same weight of both the upper and lower thread so that the tension can be even. If the sewing machine’s tension is too tight, it may lead to breaking of threads. To loosen the tension, turn the tension dial counterclockwise. An expert technician can help to reset the bobbin tension if it cannot be adjusted properly.

Your Singer Sewing machine Thread Is Poor Quality

When working with a Singer sewing machine, it is important to use good-quality thread. Low quality thread may be too thin and snap after minimal pull or too thick and break in the eye of the needle or tension discs. Purchasing bulk packages of thread can often result in a low-quality product that cannot handle the strain of machine sewing. For best results and fewer thread breaks, choose quality thread for your projects.

Your Singer Sewing machine Needle Is Damaged, Bent, or Dull

The Singer sewing machine needle may become bent or damaged with time, especially when working with thick materials. Manufacturing flaws can also be present on a needle. If the needle is not properly aligned, it is likely that it needs to be replaced.

It is recommended to change the needle after each project for optimal performance; however, if you notice thread breaking while sewing, then you should replace it.

You Are Not Using the Correct Needle in Singer Sewing machine

Using the incorrect needle in your Singer Sewing machine can cause thread to snag and break while sewing. It is important to replace the needle prior to each project, as a dull or weak needle won’t be able to easily pierce the fabric.

Thick fabrics such as corduroy, denim, and leather require specialty needles that can handle the extra thickness. By making sure you use the right needle, you can reduce the chances of your thread breaking.

Your Singer Sewing machine Needle Is Not Inserted Correctly

Ensure that the needle on your Singer Sewing Machine is inserted correctly for optimal sewing performance. The top shank of the needle should have one flat side, which should be facing towards the back of your machine when you insert it.

If the screw holding your needle in place has become loose or if you accidentally bump it, this could cause your needle to hit the bobbin case or throat plate and break. To prevent this, make sure your needle is inserted all the way up and tightened securely. Inserting it backward can also lead to breaking of the needle so ensure this doesn’t happen.

Your Singer Sewing machine Take-Up Lever Spring Is Broken

Another reason why your Singer Sewing machine thread can break while you sew is a broken or bent take-up spring. If your Singer Sewing machine thread breaks immediately when you begin to sew, or you don’t see your take-up lever going up and down, your spring is broken. Take it to a sewing machine repair technician to have the spring replaced.

Your Singer Sewing machine Bobbin Case Is Full of Lint

Your Singer sewing machine may experience frequent thread breakage if there is an excessive amount of lint in the bobbin case. This can affect the hook timing of the machine, resulting in snags and breaks in the Singer sewing machine thread. It is important to keep your sewing machine clean and free from lint build up to ensure it works properly.

You Are Sewing Too Fast

If you’re stitching too quickly, this can cause tension to be uneven and result in the thread breaking. It’s important to slow down when you sew, especially if it involves sewing through a lot of fabric or multiple layers. This will give your Singer sewing machine enough time to effectively make the locking stitch without causing thread breakage.

Advanced techniques for preventing Singer upper thread breakage

While the causes of upper thread breakage issue can vary, there are some advanced techniques that can be employed to prevent it from happening. In this section, we will discuss these techniques in detail:

  1. Using stabilizers: Stabilizers are materials that are placed beneath the fabric being sewn to help provide support and prevent the fabric from stretching or distorting. They can be used to reinforce areas that are prone to tearing or fraying, or to prevent upper thread breakage on delicate fabrics. There are many different types of stabilizers available, including fusible, tear-away, and cut-away stabilizers. Depending on the type of fabric being used and the desired outcome, different stabilizers may be more effective.
  2. Changing stitch type or length: Adjusting the stitch type or length can also help prevent upper thread breakage. For example, if the fabric being sewn is stretchy or delicate, using a zigzag stitch rather than a straight stitch can help prevent the upper thread from breaking. Alternatively, if the upper thread keeps breaking when using a certain stitch length, adjusting the stitch length may help resolve the issue.
  3. Adjusting presser foot pressure: The presser foot is the part of the sewing machine that holds the fabric in place while sewing. The pressure of the presser foot can affect the tension on the upper thread and can cause it to break. Adjusting the presser foot pressure can help prevent this issue. For example, if the fabric being sewn is thick or heavy, increasing the presser foot pressure can help ensure that the fabric is held in place without causing the upper thread to break.

In addition to these advanced techniques, there are also some best practices that sewers should follow to prevent upper thread breakage. These include:

  1. Using high-quality thread: Using high-quality thread can help prevent upper thread breakage, as it is less likely to fray or snag.
  2. Changing needles regularly: Needles can become dull or damaged over time, which can cause upper thread breakage. Changing the needle regularly can help prevent this issue.
  3. Using the correct needle size: Using the correct needle size for the fabric being sewn can also help prevent upper thread breakage. Using a needle that is too small or too large can cause the upper thread to break.

Sewers can employ various techniques to prevent upper thread breakage, such as using stabilizers, changing stitch type or length, and adjusting presser foot pressure. Additionally, following best practices such as using high-quality thread, changing needles regularly, and using the correct needle size can also help prevent this issue.

10 Common Problems with Singer Sewing Machines

In addition to the common problems listed above, Singer sewing machines can also experience the following issues:

  1. Stitch Problems
  2. Sewing Machine Parts Problems
  3. Breaking needles problems
  4. Bobbin winding problems
  5. Bobbin thread problems
  6. Bobbin holder problems
  7. Bobbin tension problems
  8. Sewing Machine Keep Jamming
  9. Tension problems
  10. Sewing machine not feeding fabric


Why does the upper thread on my Singer Sewing machine keep breaking?

There are several reasons why the upper thread on a Singer Sewing machine may keep breaking. Some common causes include using the wrong type of thread for the fabric, incorrect tension settings, a damaged or worn needle, and improperly threaded machine.

How can I prevent the upper thread on my Singer Sewing machine from breaking?

To prevent the upper thread from breaking, make sure you are using the correct type of thread for your fabric and that your machine is threaded correctly. Check that the needle is not damaged or worn, and adjust the tension settings as needed.

What type of thread should I use with my Singer Sewing machine to prevent upper thread breakage?

The type of thread you should use with your Singer Sewing machine depends on the type of fabric you are sewing. Generally, a polyester or cotton-wrapped polyester thread is a good choice for most fabrics.

Can using the wrong needle cause the upper thread on my Singer Sewing machine to break?

Yes, using the wrong needle can cause the upper thread to break. Be sure to use the correct needle type and size for your fabric, and replace your needle regularly to prevent damage or wear.

Do I need to oil my Singer Sewing machine to prevent upper thread breakage?

While oiling your machine can help prevent mechanical issues and ensure smooth operation, it is unlikely to directly prevent upper thread breakage. Focus on using the correct thread, needle, and tension settings, and ensuring proper threading and maintenance to prevent thread breakage.


In conclusion, thread breaking on a Singer Sewing Machine can be caused by several factors. These include an improperly inserted needle, using the wrong type of needle for the fabric being sewn, incorrect thread tension, a broken or bent take-up lever spring and stitching too fast. 

By ensuring all of these aspects are corrected, you can help prevent thread breakages from occurring on your Singer Sewing Machine. With proper maintenance and troubleshooting, you will be able to get the most out of your machine and create beautiful projects!

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