Husqvarna Viking H|Class E20 Common Problems and Troubleshooting

Thread Bunching Under Fabric

• Description of the Problem:

  Threads are bunching up underneath the fabric, leading to messy stitches and potential damage to the project.

• Cause of the Problem:

  Incorrect threading of the bobbin or upper thread tension may be too tight.

• Troubleshooting Step-by-Step:
  1. Re-thread the bobbin, ensuring it is correctly wound and inserted.
  2. Check the upper thread tension settings and adjust if necessary.
  3. Verify that the needle is inserted correctly and not damaged.

Needle Breakage

• Description of the Problem:

  The needle frequently breaks during sewing, causing interruptions and frustration.

• Cause of the Problem:

  Using the wrong needle size for the fabric, a bent or damaged needle, or incorrect needle insertion.
• Troubleshooting Step-by-Step:
  1. Ensure you are using the correct needle size for the fabric being sewn.
  2. Inspect the needle for any bends or damage, and replace if necessary.
  3. Verify that the needle is inserted all the way up and facing the correct direction.

Uneven Stitching

• Description of the Problem:

  The machine produces uneven stitches, with some sections appearing tighter or looser than others.

• Cause of the Problem:

  Uneven tension in the upper or lower thread, or a misaligned presser foot.
• Troubleshooting Step-by-Step:
  1. Check and adjust the tension settings for both the upper and lower threads.
  2. Ensure the presser foot is securely attached and aligned with the fabric.
  3. Clean the machine and remove any lint or debris that may affect stitching.

Noisy Operation

• Description of the Problem:

  The sewing machine operates loudly, producing unusual or excessive noise during use.
• Cause of the Problem:

  Lack of lubrication in moving parts, loose screws, or foreign objects stuck in the machine.

• Troubleshooting Step-by-Step:
  1. Apply sewing machine oil to lubricate moving parts as per the manufacturer’s recommendations.
  2. Tighten any loose screws or bolts on the machine.
  3. Inspect and remove any foreign objects that may be causing the noise.

Bobbin Thread Jamming

• Description of the Problem:

  The bobbin thread frequently jams or gets stuck, disrupting the sewing process.

• Cause of the Problem:

  Improperly wound bobbin, incorrect insertion, or debris in the bobbin area.

• Troubleshooting Step-by-Step:
  1. Ensure the bobbin is correctly wound and inserted into the bobbin case.
  2. Clean the bobbin area, removing any lint or debris that may be causing the jam.
  3. Check for any damage to the bobbin case and replace if necessary.

Feed Dog Issues

• Description of the Problem:

  The feed dogs, responsible for moving the fabric, do not function properly or fail to advance the material.

• Cause of the Problem:

  Dirty or obstructed feed dogs, incorrect stitch length setting, or a malfunctioning feed dog mechanism.
• Troubleshooting Step-by-Step:
  1. Clean the feed dogs thoroughly, removing any accumulated lint or debris.
  2. Adjust the stitch length setting to ensure it aligns with the desired fabric movement.
  3. If problems persist, consult the user manual for feed dog adjustment or seek professional assistance.

Bobbin Thread Not Catching

• Description of the Problem:

  The needle fails to pick up the bobbin thread, leading to incomplete stitches.
• Cause of the Problem:

  Incorrect threading of the bobbin, improper installation, or a damaged needle.

• Troubleshooting Step-by-Step:
  1. Re-thread the bobbin, ensuring it follows the correct path as per the user manual.
  2. Verify that the bobbin is properly inserted into the bobbin case.
  3. Inspect the needle for any damage and replace it if necessary.

Bobbin Case Tension Issues

• Description of the Problem:

  Inconsistencies in bobbin tension result in loose or tight stitches, affecting the overall sewing quality.

• Cause of the Problem:

  Incorrect bobbin tension setting, debris in the bobbin case, or a damaged bobbin case.

• Troubleshooting Step-by-Step:
  1. Adjust the bobbin tension according to the user manual and fabric requirements.
  2. Clean the bobbin case, removing any lint or debris affecting tension.
  3. If problems persist, inspect the bobbin case for damage and replace if necessary.

Skipped Stitches

• Description of the Problem:

  Stitches are consistently skipped, creating gaps in the fabric and compromising the integrity of the seam.

• Cause of the Problem:

  Blunt or bent needle, incorrect needle size for the fabric, or a timing issue with the sewing machine.
• Troubleshooting Step-by-Step:
  1. Replace the needle with a new, sharp one suitable for the fabric being sewn.
  2. Ensure the needle is inserted correctly and facing the right direction.
  3. If problems persist, consult the user manual for timing adjustment or seek professional assistance.

Thread Breaking During Sewing

• Description of the Problem:

  The thread frequently breaks while sewing, leading to interruptions and frustration.
• Cause of the Problem:

  Incorrect threading, tension too tight, or using low-quality or old thread.

• Troubleshooting Step-by-Step:
  1. Re-thread the machine, ensuring the thread follows the correct path as per the user manual.
  2. Check and adjust the tension settings to the recommended levels for the chosen fabric.
  3. Use high-quality, fresh thread suitable for the sewing project.

Feed Dog Height Adjustment

• Description of the Problem:

  The feed dogs fail to move the fabric properly, causing uneven feeding and stitching.

• Cause of the Problem:

  Incorrect feed dog height setting, worn-out feed dogs, or a malfunctioning feed dog mechanism.

• Troubleshooting Step-by-Step:
  1. Consult the user manual for the correct feed dog height setting and adjust accordingly.
  2. If the feed dogs are worn, consider replacing them as per the manufacturer’s recommendations.
  3. If problems persist, seek professional assistance for feed dog mechanism inspection and repair.

Uneven Bobbin Winding

• Description of the Problem:

  The bobbin winding process results in uneven winding, affecting the overall sewing performance.

• Cause of the Problem:

  Incorrect threading of the bobbin winding mechanism or a malfunction in the winding mechanism.
• Troubleshooting Step-by-Step:
  1. Ensure the bobbin is correctly placed on the winding spindle and that the threading is secure.
  2. Clean the bobbin winding area, removing any debris that may hinder the winding process.
  3. If problems persist, consult the user manual for bobbin winding mechanism troubleshooting or seek professional assistance.

Stitch Length Inconsistency

• Description of the Problem:

  The sewing machine produces stitches of varying lengths, leading to an uneven appearance in the fabric.
• Cause of the Problem:

  Incorrect adjustment of the stitch length setting, a malfunction in the stitch length regulator, or debris in the mechanism.

• Troubleshooting Step-by-Step:
  1. Verify and adjust the stitch length setting according to the desired fabric and sewing project.
  2. Clean the stitch length regulator and surrounding area, removing any lint or debris.
  3. If problems persist, consult the user manual for stitch length regulator troubleshooting or seek professional assistance.

Thread Fraying

• Description of the Problem:

  The sewing machine thread frays or shreds during the stitching process, compromising the integrity of the seam.

• Cause of the Problem:

  Using the wrong needle size, inadequate thread tension, or a dull or damaged needle.

• Troubleshooting Step-by-Step:
  1. Ensure the needle size matches the fabric being sewn and is suitable for the chosen thread.
  2. Check and adjust the thread tension to prevent excessive stress on the thread.
  3. Replace the needle with a new, sharp one if it shows signs of dullness or damage.

Reverse Stitching Malfunction

• Description of the Problem:

  The reverse stitching function does not operate correctly, leading to incomplete or erratic backstitches.

• Cause of the Problem:

  Mechanical issues with the reverse stitching mechanism, misalignment, or debris affecting the function.
• Troubleshooting Step-by-Step:
  1. Check for any visible misalignment or obstruction in the reverse stitching mechanism.
  2. Clean the area around the reverse stitching lever, removing any accumulated debris.
  3. If problems persist, consult the user manual for reverse stitching mechanism troubleshooting or seek professional assistance.

Bobbin Thread Tangling

• Description of the Problem:

  The bobbin thread consistently tangles or forms knots during sewing, causing interruptions and affecting the seam quality.
• Cause of the Problem:

  Incorrect threading of the bobbin, a damaged bobbin case, or improper tension settings.

• Troubleshooting Step-by-Step:
  1. Re-thread the bobbin, ensuring it follows the correct path and is securely inserted into the bobbin case.
  2. Inspect the bobbin case for any visible damage and replace if necessary.
  3. Adjust the tension settings for both the upper and lower threads to the recommended levels.

Machine Jamming During Fabric Feed

• Description of the Problem:

  The sewing machine frequently jams or stalls when feeding fabric, hindering the overall sewing process.

• Cause of the Problem:

  Obstructed feed dogs, improper presser foot attachment, or a misalignment in the fabric feeding mechanism.

• Troubleshooting Step-by-Step:
  1. Clean the feed dogs thoroughly, removing any accumulated lint or debris.
  2. Ensure the presser foot is securely attached and aligned with the fabric.
  3. If problems persist, consult the user manual for fabric feeding mechanism troubleshooting or seek professional assistance.

Needle Thread Tension Issues

• Description of the Problem:

  Inconsistent tension in the needle thread leads to loops or puckering in the fabric.

• Cause of the Problem:

  Incorrect needle thread tension settings, debris in the tension disks, or a malfunctioning tension mechanism.
• Troubleshooting Step-by-Step:
  1. Adjust the needle thread tension to the recommended levels for the chosen fabric.
  2. Clean the tension disks, removing any lint or debris that may be affecting tension.
  3. If problems persist, consult the user manual for needle thread tension mechanism troubleshooting or seek professional assistance.

Fabric Jamming in the Bobbin Area

• Description of the Problem:

  Fabric frequently gets jammed or stuck in the bobbin area, causing disruptions in the sewing process.
• Cause of the Problem:

  Debris or tangled threads in the bobbin area, improper threading, or a malfunctioning bobbin case.

• Troubleshooting Step-by-Step:
  1. Clean the bobbin area thoroughly, removing any accumulated lint, debris, or tangled threads.
  2. Re-thread the bobbin, ensuring it follows the correct path and is securely inserted into the bobbin case.
  3. If problems persist, inspect the bobbin case for any visible damage and replace if necessary.

Stitch Selector Malfunction

• Description of the Problem:

  The stitch selector does not function as intended, resulting in the machine not producing the selected stitches.

• Cause of the Problem:

  Mechanical issues with the stitch selector, misalignment, or debris affecting the selector’s movement.

• Troubleshooting Step-by-Step:
  1. Check for any visible misalignment or obstruction in the stitch selector mechanism.
  2. Clean the area around the stitch selector, removing any accumulated debris.
  3. If problems persist, consult the user manual for stitch selector mechanism troubleshooting or seek professional assistance.

Bobbin Thread Not Pulling Up

• Description of the Problem:

  The bobbin thread fails to pull up to the surface, resulting in incomplete stitches on the fabric.

• Cause of the Problem:

  Incorrect threading of the bobbin, improper bobbin tension, or a misaligned bobbin case.

• Troubleshooting Step-by-Step:
  1. Re-thread the bobbin, ensuring it follows the correct path and is securely inserted into the bobbin case.
  2. Adjust the bobbin tension according to the user manual and fabric requirements.
  3. If problems persist, inspect the bobbin case for any visible misalignment and adjust if necessary.

Noisy Bobbin Winding

• Description of the Problem:

  The bobbin winding process produces excessive noise, indicating a potential issue with the winding mechanism.

• Cause of the Problem:

  Worn-out or damaged bobbin winding components, lack of lubrication, or foreign objects affecting the mechanism.

• Troubleshooting Step-by-Step:
  1. Inspect and replace any worn-out or damaged bobbin winding components as per the manufacturer’s recommendations.
  2. Apply sewing machine oil to lubricate the bobbin winding mechanism, following the user manual guidelines.
  3. Remove any foreign objects from the bobbin winding area that may be causing the noise.

Q: Why is my thread constantly breaking during sewing?

A: Thread breakage can occur due to incorrect threading, tight tension, or using low-quality thread. Ensure proper threading, adjust tension settings, and use high-quality, fresh thread to prevent breakage.

Q: How can I fix uneven stitching on my Husqvarna Viking H|Class E20?

A: Uneven stitching may result from tension issues or misalignment. Adjust upper and lower thread tensions, clean the machine, and ensure proper needle insertion to achieve consistent stitching.

Q: What should I do if my bobbin thread keeps tangling?

A: Tangled bobbin thread may be due to improper threading or debris. Re-thread the bobbin, clean the bobbin area, and ensure correct tension settings to prevent tangling.

Q: Why are my stitches skipping on the fabric?

A: Skipped stitches can result from a dull or bent needle, incorrect needle size, or timing issues. Replace the needle, use the appropriate size, and consult the manual for timing adjustments if needed.

Q: How do I troubleshoot if my feed dogs are not working properly?

A: Clean the feed dogs, adjust the stitch length, and inspect for any wear. If issues persist, consult the manual for feed dog adjustments or seek professional assistance.