Singer Sewing Machine Troubleshooting Guide + Handy Quick Reference Chart
Singer sewing machines have been a trusted choice for crafters and professionals for over 160 years. However, like all machines, they can sometimes run into issues. Whether you’re a beginner or an experienced sewer, troubleshooting your Singer sewing machine can often save you time and money, especially if the issue is minor. In this guide, we’ll cover common Singer sewing machine problems and solutions to help you get back to stitching in no time.
Singer Sewing Machine Troubleshooting Chart
Use this handy chart to quickly diagnose your problem, and then scroll down for the full solution!
Problem | Possible Cause | Solution |
---|---|---|
Machine Won’t Start | Power supply issues, faulty foot pedal or plug connection | Ensure machine is plugged in securely, check foot pedal and power cord for damage, test the outlet with another device. |
Needle Not Moving or Stuck | Incorrect needle installation, bent or damaged needle, improper threading | Check needle installation, replace a damaged needle, re-thread the machine, ensure handwheel is engaged. |
Thread Bunching or Jamming Under Fabric | Incorrect threading, tension issues, incorrect bobbin insertion | Re-thread the machine, adjust tension, check bobbin insertion and bobbin case seating. |
Skipping Stitches | Dull or bent needle, incorrect needle type, tension problems | Replace needle, adjust tension, ensure correct needle type for fabric. |
Thread Breaking | Improper threading, damaged needle, tension issues, incorrect thread type | Re-thread the machine, replace damaged needles, adjust tension, ensure proper thread type for fabric. |
Machine Making Unusual Noises | Lack of lubrication, jammed parts, tangled thread | Clean and lubricate the machine, remove tangled threads, ensure proper thread paths. |
Fabric Not Feeding | Feed dogs lowered, clogged feed dog mechanism, wrong needle size | Raise the feed dogs, clean feed dogs, replace needle with appropriate size for fabric. |
Uneven Stitching | Tension issues, improper threading, needle problems | Adjust tension, re-thread the machine, replace needle if damaged. |
Machine Stopping Mid-Stitch | Needle hitting presser foot or plate, thread tangled in bobbin area | Check needle for damage, remove tangled thread, re-thread the bobbin area. |
Machine Not Stitching Properly | Incorrect stitch settings, tension misadjusted | Verify stitch length/width settings, adjust tension for even stitches. |
1. Machine Won’t Start
Possible Cause:
- Power supply issues
- Faulty foot pedal or plug connection
Solution:
First, ensure the machine is plugged in securely and the power switch is turned on. Check the power cord and foot pedal for any visible damage. If the machine still won’t start, test the outlet with another device to ensure it’s functioning. If all seems well, consult the machine’s manual to check for any reset procedures or fuse issues.
2. Needle Not Moving or Stuck
Possible Cause:
- Needle is installed incorrectly
- Needle is bent or damaged
- Machine is not threaded properly
Solution:
Make sure the needle is correctly inserted with the flat side facing the back and is pushed up all the way into the needle clamp. If the needle is bent, replace it with a new one. Next, ensure the machine is threaded correctly, as improper threading can prevent the needle from moving properly. Finally, check if the handwheel is disengaged; sometimes, a locked handwheel can prevent the needle from moving.
3. Thread Bunching or Jamming Under Fabric
Possible Cause:
- Incorrect threading
- Tension issues
- Incorrect bobbin insertion
Solution:
Start by re-threading the machine, ensuring the top and bobbin threads are routed correctly through all necessary guides. If the thread bunching persists, adjust the tension dial. Too tight or too loose tension can cause the thread to bunch under the fabric. Lastly, remove and check the bobbin to ensure it’s inserted correctly and the bobbin case is seated properly in the machine.
4. Skipping Stitches
Possible Cause:
- Dull or bent needle
- Incorrect needle type
- Tension problems
Solution:
If stitches are skipping, replace the needle with a new one, especially if it’s dull or bent. Also, ensure you’re using the correct needle type for your fabric. For example, thicker fabrics require a heavy-duty needle. Additionally, adjust the tension settings on the machine to ensure the stitches form evenly and without skipping.
5. Thread Breaking
Possible Cause:
- Thread is not inserted correctly
- Needle is damaged
- Tension issues
- Using the wrong type of thread for your fabric
Solution:
First, ensure the thread is correctly threaded through the machine, paying special attention to the tension discs and guides. Replace any broken or bent needles, as this could be causing the thread to break. Adjust the tension if necessary, as both tight and loose tension can cause the thread to snap. Also, double-check the thread type to make sure it’s appropriate for the fabric you’re working with.
6. Machine Making Unusual Noises
Possible Cause:
- Lack of lubrication
- Jammed parts
- Thread tangled in the machine
Solution:
If your Singer machine is making strange noises, it could be a sign that parts are jammed or dry. Turn off the machine, and remove any visible threads from the bobbin area. Clean out the machine and lubricate the moving parts using machine oil according to the manufacturer’s instructions. Be sure to use oil designed for sewing machines, as other oils can damage the machine.
7. Fabric Not Feeding
Possible Cause:
- Feed dogs lowered
- Feed dog mechanism is clogged
- Needle is too thick for the fabric
Solution:
Check if the feed dogs are lowered; if they are, raise them by turning the lever on the back or side of your machine. Clean the feed dogs if they are clogged with lint or thread debris. Additionally, ensure that the needle size is appropriate for the fabric. For thick fabrics, use a heavier-duty needle, while thinner fabrics may require a finer needle.
8. Uneven Stitching
Possible Cause:
- Tension issues
- Improper threading
- Needle problems
Solution:
Uneven stitching often indicates a tension issue. Recheck the machine’s tension settings and adjust as needed, ensuring it is set according to the fabric and thread you’re using. Re-thread the machine if necessary, ensuring both the top thread and bobbin thread are threaded properly. Finally, ensure the needle is sharp and in good condition, as a dull or damaged needle can lead to uneven stitches.
9. Machine Stopping Mid-Stitch
Possible Cause:
- Needle hitting the presser foot or plate
- Thread tangled in bobbin area
Solution:
If the needle is hitting the presser foot or plate, check to ensure the needle is properly installed and not bent. If the machine stops mid-stitch, check the bobbin area for tangled thread, which can prevent the machine from moving smoothly. Clear any tangles, and re-thread the machine if necessary.
10. Machine Not Stitching Properly
Possible Cause:
- Incorrect stitch length or width settings
- Tension misadjusted
Solution:
Verify that the stitch length and width are properly set according to your needs. If the machine is stitching too short or too long, adjust the settings on the machine. Additionally, check the tension settings—if they are too tight or too loose, it can cause irregular stitches. Reset the tension as needed to restore proper stitching.
Conclusion
Troubleshooting your Singer sewing machine doesn’t have to be daunting. By following these steps and consulting the machine’s manual, you can often resolve common issues on your own. Regular maintenance, such as cleaning, oiling, and changing needles, will keep your machine running smoothly for years to come. If you encounter a problem that you can’t fix or requires a more technical repair, don’t hesitate to contact a professional technician or Singer’s customer service for assistance.
Happy sewing!

Tanya, both a nurturing stay-at-home mom and a skilled crafter, is the creative force behind our blog. As the co-founder of Romney Ridge Farms & Crafts, she’s the editor and curator. She also runs the Romney Ridge Farms & Crafts social media accounts where we post new patterns for you to enjoy.