Husqvarna Viking 940 Common Problems and Troubleshooting

Are you experiencing issues with your Husqvarna Viking 940 sewing machine? Whether you’re a beginner or a seasoned seamstress, encountering problems with your beloved machine can be frustrating. In this article, we’ll delve into the common issues that users may face with the Husqvarna Viking 940 and provide troubleshooting tips to help you get back to your sewing projects with ease.

Causes of Common Problems with the Husqvarna Viking 940

Product details and computerized issues are among the potential culprits behind the common problems you might encounter with your Husqvarna Viking 940 sewing machine. Let’s explore these issues and their solutions in the following sections.

Common Problems with the Husqvarna Viking 940

1. Thread Breaking

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice frequent thread breakage.

• Cause of the problem:

  Thread breaking can occur due to various reasons, such as incorrect threading, using old or poor-quality thread, or tension issues.

• Troubleshooting step-by-step:

  1. Re-thread the machine following the threading guide provided in the manual.
  2. Ensure you are using high-quality thread suitable for your fabric.
  3. Check the tension settings and adjust them if necessary.
  4. Clean the machine, especially around the tension discs, to remove any debris that may be causing interference.
  5. If the problem persists, consult the user manual for further troubleshooting or consider professional servicing.

2. Uneven Stitching

• Description of the problem:

  Your stitches appear uneven or irregular when sewing with the Husqvarna Viking 940.

• Cause of the problem:

  Uneven stitching can result from incorrect tension settings, bent or damaged needles, or an improperly inserted bobbin.

• Troubleshooting step-by-step:

  1. Check the tension settings and adjust them according to the fabric you are using.
  2. Replace the needle with a new one, ensuring it is the correct type and size for your project.
  3. Inspect the bobbin and re-insert it properly into the bobbin case.
  4. Test the stitching on a scrap piece of fabric to ensure the issue has been resolved.
  5. If the problem persists, consider contacting a certified technician for further assistance.

3. Jammed Bobbin

• Description of the problem:

  The bobbin gets stuck or jams while sewing with the Husqvarna Viking 940.

• Cause of the problem:

  A jammed bobbin can occur due to improper threading, debris or lint accumulation in the bobbin area, or a damaged bobbin case.

• Troubleshooting step-by-step:

  1. Remove the bobbin case and clean any debris or lint from the area.
  2. Re-thread the bobbin following the instructions in the manual.
  3. Check the bobbin for any damage and replace it if necessary.
  4. Test the machine with a new bobbin to see if the issue persists.
  5. If the problem continues, seek assistance from a qualified technician for further inspection and repair.

4. Needle Breakage

• Description of the problem:

  The needle frequently breaks while sewing with the Husqvarna Viking 940.

• Cause of the problem:

  Needle breakage can occur due to various reasons, such as using the wrong needle size or type, sewing over thick seams or pins, or a misaligned needle.

• Troubleshooting step-by-step:

  1. Ensure you are using the correct needle size and type for your fabric.
  2. Avoid sewing over thick seams or pins, which can put stress on the needle.
  3. Check the needle alignment and adjust if necessary.
  4. Replace the needle with a new one if it appears bent or damaged.
  5. If the problem persists, consider consulting with a sewing machine expert for further guidance.

5. Machine Not Powering On

• Description of the problem:

  The Husqvarna Viking 940 does not power on when you press the power button.

• Cause of the problem:

  Power issues can stem from various sources, such as a faulty power cord, a blown fuse, or a malfunctioning power switch.

• Troubleshooting step-by-step:

  1. Check the power cord for any visible damage or fraying, and ensure it is securely plugged into a working outlet.
  2. Inspect the fuse in the machine’s plug and replace it if necessary.
  3. Test the power switch to see if it is functioning correctly.
  4. If the machine still does not power on, consider seeking assistance from a qualified technician to diagnose and repair the issue.

6. Bobbin Thread Tangling

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice that the bobbin thread is tangling or forming knots underneath the fabric.

• Cause of the problem:

  Bobbin thread tangling can occur due to improper tension settings, incorrect bobbin insertion, or a dirty bobbin case.

• Troubleshooting step-by-step:

  1. Check the tension settings for both the upper thread and bobbin thread and adjust as needed.
  2. Ensure the bobbin is inserted correctly into the bobbin case, following the machine’s instructions.
  3. Clean the bobbin case area to remove any lint or debris that may be causing the tangling.
  4. If the issue persists, try using a different type or weight of thread for the bobbin.
  5. Consider consulting the user manual for specific troubleshooting steps related to bobbin issues.

7. Fabric Not Feeding Properly

• Description of the problem:

  The fabric is not advancing smoothly while sewing with the Husqvarna Viking 940, causing stitching irregularities.

• Cause of the problem:

  Issues with fabric feeding can arise from a dirty feed dog mechanism, incorrect presser foot pressure, or improper machine settings.

• Troubleshooting step-by-step:

  1. Inspect and clean the feed dog mechanism to remove any accumulated lint or debris.
  2. Adjust the presser foot pressure according to the thickness of the fabric being used.
  3. Check the stitch length and adjust if necessary, as a too-short stitch length can hinder fabric feeding.
  4. Ensure the presser foot is lowered properly before sewing to allow for smooth fabric movement.
  5. If the issue persists, consider using a walking foot attachment for more even fabric feeding.

8. Thread Bunching on the Underside

• Description of the problem:

  You notice loops or bunches of thread on the underside of your fabric while sewing with the Husqvarna Viking 940.
• Cause of the problem:

  Thread bunching on the underside can result from incorrect threading, bobbin tension issues, or a dull or damaged needle.

• Troubleshooting step-by-step:

  1. Re-thread the machine, ensuring the thread is correctly seated in the tension discs and the bobbin is inserted properly.
  2. Check the tension settings for the bobbin thread and adjust as needed to achieve balanced tension with the upper thread.
  3. Replace the needle with a new, appropriate needle size and type for your fabric.
  4. Test the machine on a scrap piece of fabric to verify that the thread tension and needle are properly adjusted.
  5. If the problem persists, consult the user manual for further troubleshooting or seek assistance from a professional.

9. Stitch Skipped

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice that the machine occasionally skips stitches, leaving gaps in the seam.

• Cause of the problem:

  Stitch skipping can occur due to a dull or bent needle, incorrect needle threading, or a timing issue with the machine.

• Troubleshooting step-by-step:

  1. Replace the needle with a new one, ensuring it is the correct size and type for your fabric.
  2. Check the needle threading to make sure the thread is properly seated in all guides and tension discs.
  3. Inspect the machine’s timing according to the user manual and adjust if necessary.
  4. Test the machine on scrap fabric to verify that the stitches are no longer skipping.
  5. If the issue persists, seek assistance from a qualified technician for further diagnosis and repair.

10. Fabric Puckering

• Description of the problem:

  When sewing with the Husqvarna Viking 940, you observe puckering or gathering of the fabric along the seam lines.

• Cause of the problem:

  Fabric puckering can result from excessive tension, improper presser foot pressure, or using the wrong needle for the fabric.

• Troubleshooting step-by-step:

  1. Adjust the tension settings on the machine to reduce tension, especially if sewing lightweight fabrics.
  2. Decrease the presser foot pressure to allow the fabric to feed more smoothly under the foot.
  3. Ensure you are using the correct needle type and size for the fabric being sewn.
  4. If working with delicate fabrics, consider using a stabilizer or interfacing to prevent puckering.
  5. Test the adjustments on scrap fabric before continuing with your project.

6. Fabric Not Feeding Properly

• Description of the problem:

  While sewing with the Husqvarna Viking 940, the fabric does not feed through the machine smoothly or consistently.
• Cause of the problem:

  This issue can occur due to a dirty or malfunctioning feed dog, improper presser foot pressure, or incorrect stitch length settings.

• Troubleshooting step-by-step:

  1. Ensure the feed dog is clean and free from lint or debris.
  2. Adjust the presser foot pressure according to the thickness of the fabric being used.
  3. Check the stitch length settings and adjust them if necessary for the fabric and sewing technique.
  4. If the problem persists, consider lubricating the feed dog mechanism or consulting a professional for further assistance.

7. Bobbin Thread Loops

• Description of the problem:

  When sewing with the Husqvarna Viking 940, you notice loops of bobbin thread on the underside of the fabric.
• Cause of the problem:

  This issue may result from incorrect bobbin tension, improper bobbin threading, or a dull or damaged needle.

• Troubleshooting step-by-step:

  1. Check the bobbin tension and adjust it as needed using the tension screw on the bobbin case.
  2. Ensure the bobbin is correctly inserted into the bobbin case and that the thread is properly threaded through the tension spring.
  3. Replace the needle with a new one, making sure it is the correct size and type for your fabric.
  4. If the problem persists, try using a different bobbin or consult the machine’s manual for further troubleshooting tips.

8. Needle Threader Malfunction

• Description of the problem:

  The needle threader feature on the Husqvarna Viking 940 is not functioning properly, making it difficult to thread the needle.
• Cause of the problem:

  This issue can arise from a misaligned or damaged needle threader mechanism, or it may simply need cleaning or adjustment.

• Troubleshooting step-by-step:

  1. Inspect the needle threader mechanism for any visible damage or misalignment.
  2. Clean the needle threader area with a brush or compressed air to remove any dust or debris that may be affecting its functionality.
  3. Refer to the machine’s manual for instructions on adjusting the needle threader, if possible.
  4. If the problem persists, consider seeking assistance from a qualified technician for repair or replacement of the needle threader.

9. Irregular Bobbin Winding

• Description of the problem:

  When attempting to wind a bobbin on the Husqvarna Viking 940, the thread winds unevenly or inconsistently.
• Cause of the problem:

  This issue may be caused by improper bobbin threading, a loose bobbin tension screw, or debris obstructing the bobbin winding mechanism.

• Troubleshooting step-by-step:

  1. Ensure the bobbin is inserted correctly onto the winding spindle and that the thread is properly threaded through the bobbin tension guide.
  2. Check the tension screw on the bobbin case and tighten it if necessary to provide adequate tension for winding.
  3. Clean any lint or debris from the bobbin winding area, particularly around the tension guide and spindle.
  4. If the problem persists, try using a different bobbin or consult the machine’s manual for further troubleshooting steps.

10. Stitch Skipping

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice that the machine occasionally skips stitches, resulting in uneven or incomplete seams.
• Cause of the problem:

  Stitch skipping can occur due to various factors, including a dull or bent needle, improper threading, or tension issues.

• Troubleshooting step-by-step:

  1. Replace the needle with a new one, ensuring it is the correct size and type for your fabric.
  2. Re-thread the machine, following the threading guide provided in the manual, and ensure the thread is properly seated in the tension discs.
  3. Check the tension settings and adjust them as needed for the fabric you are using.
  4. If the problem persists, try using a different thread or fabric, as certain combinations may be more prone to skipping stitches.
  5. If all else fails, consult a professional technician for further inspection and repair.

11. Thread Tension Issues

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice inconsistent tension in your stitches, with some appearing too loose and others too tight.

• Cause of the problem:

  Thread tension issues can arise from incorrect threading, dirty or worn tension discs, or improper tension settings.

• Troubleshooting step-by-step:

  1. Check the threading of both the upper and lower threads, ensuring they are correctly seated in their respective tension mechanisms.
  2. Clean the tension discs using a soft brush or compressed air to remove any debris or buildup that may be affecting their function.
  3. Adjust the tension settings gradually, testing on scrap fabric until you achieve the desired tension balance.
  4. If the problem persists, consider replacing the tension discs or seeking professional assistance for further diagnosis and repair.

12. Machine Overheating

• Description of the problem:

  During prolonged use of the Husqvarna Viking 940, you notice the machine becoming excessively hot to the touch.

• Cause of the problem:

  Machine overheating can occur due to a buildup of lint or debris in the machine, inadequate ventilation, or a malfunctioning motor.

• Troubleshooting step-by-step:

  1. Turn off the machine and unplug it from the power source to allow it to cool down completely.
  2. Inspect the machine for any visible accumulation of lint or debris, particularly around the motor and ventilation areas.
  3. Clean the machine thoroughly using a brush or compressed air to remove any obstructions to airflow.
  4. Ensure the machine is placed in a well-ventilated area with sufficient space around it to prevent overheating.
  5. If the problem persists, consult a certified technician to inspect the motor and internal components for any issues.

13. Buttonhole Malfunction

• Description of the problem:

  When attempting to sew buttonholes with the Husqvarna Viking 940, you encounter issues such as irregular sizing or incomplete stitching.

• Cause of the problem:

  Buttonhole malfunctions can be caused by incorrect buttonhole settings, improper positioning of the fabric, or a malfunctioning buttonhole foot.

• Troubleshooting step-by-step:

  1. Ensure the buttonhole settings on the machine are correctly adjusted for the desired buttonhole size and fabric type.
  2. Position the fabric correctly under the buttonhole foot, ensuring it is securely held in place and aligned with the markings.
  3. Test the buttonhole on a scrap piece of fabric before sewing on the actual garment to ensure proper sizing and stitching.
  4. If the problem persists, try using a different buttonhole foot or consult the machine’s manual for troubleshooting tips specific to buttonhole sewing.

14. Bobbin Case Jamming

• Description of the problem:

  The bobbin case of the Husqvarna Viking 940 frequently jams or gets stuck during sewing.

• Cause of the problem:

  Jamming of the bobbin case can occur due to improper insertion of the bobbin, a damaged or worn bobbin case, or debris accumulation in the bobbin area.

• Troubleshooting step-by-step:

  1. Remove the bobbin case and inspect it for any visible damage or wear, replacing it if necessary.
  2. Clean the bobbin area thoroughly, removing any lint, dust, or debris that may be causing obstruction.
  3. Re-insert the bobbin into the bobbin case, ensuring it is correctly positioned and the thread is properly threaded through the tension spring.
  4. If the problem persists, consider lubricating the bobbin case mechanism or seeking professional assistance for further diagnosis and repair.

15. Feed Dog Not Moving

• Description of the problem:

  The feed dog mechanism of the Husqvarna Viking 940 does not engage or move the fabric forward during sewing.

• Cause of the problem:

  This issue may be caused by a disengaged feed dog, a malfunctioning feed dog mechanism, or debris accumulation obstructing its movement.

• Troubleshooting step-by-step:

  1. Check if the feed dog is engaged by consulting the machine’s manual and adjusting the feed dog lever if necessary.
  2. Inspect the feed dog mechanism for any visible damage or obstruction, cleaning it thoroughly to ensure smooth movement.
  3. Manually move the feed dog up and down to see if it responds properly, and test sewing on scrap fabric to confirm functionality.
  4. If the problem persists, seek assistance from a qualified technician to diagnose and repair any underlying issues with the feed dog mechanism.

16. Thread Cutter Not Functioning

• Description of the problem:

  The thread cutter feature on the Husqvarna Viking 940 is not cutting the thread as expected.

• Cause of the problem:

  This issue can arise from a dull or misaligned thread cutter blade, debris accumulation in the cutter area, or a malfunctioning cutter mechanism.

• Troubleshooting step-by-step:

  1. Inspect the thread cutter blade for any signs of dullness or damage, and replace it if necessary.
  2. Clean the thread cutter area thoroughly to remove any lint, dust, or debris that may be obstructing the blade’s movement.
  3. Check if the cutter mechanism is functioning properly by manually activating it and observing its action.
  4. If the problem persists, consult the machine’s manual for guidance on adjusting or repairing the thread cutter mechanism.

17. Stitch Length Variation

• Description of the problem:

  While sewing with the Husqvarna Viking 940, you notice inconsistencies in stitch length, with some stitches appearing longer or shorter than others.

• Cause of the problem:

  Stitch length variation can be caused by incorrect stitch length settings, worn feed dog teeth, or inconsistent presser foot pressure.

• Troubleshooting step-by-step:

  1. Check the stitch length settings on the machine and adjust them as needed for your desired stitch length.
  2. Inspect the feed dog teeth for signs of wear or damage, replacing them if necessary to ensure smooth fabric feeding.
  3. Adjust the presser foot pressure according to the fabric thickness and texture to maintain consistent stitch length.
  4. If the problem persists, consider lubricating the feed dog mechanism or seeking professional assistance for further diagnosis and repair.

18. Thread Jamming in the Bobbin Case

• Description of the problem:

  Threads are getting jammed or tangled in the bobbin case area of the Husqvarna Viking 940 during sewing.

• Cause of the problem:

  This issue may result from improper bobbin insertion, incorrect bobbin tension, or debris accumulation in the bobbin case.

• Troubleshooting step-by-step:

  1. Remove the bobbin case and clean it thoroughly, removing any lint, dust, or debris that may be causing obstruction.
  2. Check the bobbin tension and adjust it as needed using the tension screw on the bobbin case.
  3. Ensure the bobbin is correctly inserted into the bobbin case and that the thread is properly threaded through the tension spring.
  4. If the problem persists, try using a different bobbin or consult the machine’s manual for further troubleshooting tips.

19. Needle Up/Down Function Not Working

• Description of the problem:

  The needle up/down function of the Husqvarna Viking 940 is not responding when activated.

• Cause of the problem:

  This issue may be caused by a malfunctioning needle up/down button, a loose connection, or a problem with the machine’s internal wiring.

• Troubleshooting step-by-step:

  1. Check the needle up/down button for any visible damage or wear, and ensure it is properly connected to the machine.
  2. Inspect the machine’s wiring and connections for any loose or damaged components, repairing or replacing them as needed.
  3. Test the needle up/down function with different stitches and settings to determine if the issue is consistent or intermittent.
  4. If the problem persists, consult the machine’s manual for guidance on troubleshooting electrical issues or seek professional assistance.

20. Motor Making Unusual Noise

• Description of the problem:

  While operating the Husqvarna Viking 940, you notice the motor producing unusual or loud noises.

• Cause of the problem:

  Motor noises can indicate various issues, including worn bearings, loose components, or a malfunctioning motor.

• Troubleshooting step-by-step:

  1. Stop using the machine immediately if you notice any unusual motor noises to prevent further damage.
  2. Inspect the machine’s exterior for any visible signs of damage or loose components, tightening screws or bolts if necessary.
  3. Consult the machine’s manual for guidance on lubricating the motor or performing basic maintenance tasks to improve its performance.
  4. If the noises persist or worsen, refrain from using the machine and seek professional assistance from a certified technician for diagnosis and repair.

Husqvarna Viking 940 Sewing Machine Manual

The operating instructions for the Husqvarna Viking 940 sewing machine can be found on the manufacturer’s website. Please visit the official Husqvarna Viking website and navigate to the support or downloads section to access the manual.

Husqvarna Viking 940 Frequently Asked Questions

Q: How can I troubleshoot thread breaking issues with my Husqvarna Viking 940?

A: Thread breaking can occur due to various reasons such as incorrect threading, using old or poor-quality thread, or tension issues. Refer to the troubleshooting steps provided in the article to address this issue.

Q: What should I do if my Husqvarna Viking 940 is not powering on?

A: Power issues can stem from various sources such as a faulty power cord, a blown fuse, or a malfunctioning power switch. Follow the troubleshooting steps outlined in the article to diagnose and resolve the problem.

Q: How can I fix uneven stitching on my Husqvarna Viking 940?

A: Uneven stitching can result from incorrect tension settings, bent or damaged needles, or an improperly inserted bobbin. Consult the troubleshooting steps provided in the article to address this issue.

Q: Why does my Husqvarna Viking 940 jam frequently?

A: Bobbin jams can occur due to improper threading, debris or lint accumulation in the bobbin area, or a damaged bobbin case. Refer to the troubleshooting tips in the article to resolve this issue.

Q: What should I do if my Husqvarna Viking 940’s needle keeps breaking?

A: Needle breakage can occur due to various reasons such as using the wrong needle size or type, sewing over thick seams or pins, or a misaligned needle. Follow the troubleshooting steps provided in the article to address this issue.

Conclusion

Users are advised to always refer to the manual, customer service, or service center whenever possible if there is a problem with their Husqvarna Viking 940 sewing machine. These resources can provide valuable assistance in troubleshooting and resolving any issues encountered.

Husqvarna Viking 980 Common Problems

Husqvarna Viking 990S Common Problems

Husqvarna Viking Huskylock 800 Common Problems