Husqvarna Viking 6370 Common Problems and Troubleshooting

Welcome to our guide on addressing common problems with the Husqvarna Viking 6370 sewing machine. If you own this model, you may encounter issues during your sewing projects. This article provides insights into potential challenges and troubleshooting solutions, ensuring a smoother sewing experience.

Husqvarna Viking 6370 Review

The Husqvarna Viking 6370 is a classic electronic retro sewing machine that ceased production in 1982. Despite its age, it remains highly regarded among sewing enthusiasts for its robust build quality and reliable performance. Here’s a brief review along with a table of its features.

The Husqvarna Viking 6370 is a timeless gem for vintage sewing aficionados. Its electronic features were ahead of its time, offering users a glimpse into the future of sewing technology in the early 1980s.

While it lacks the bells and whistles of modern machines, its sturdy construction and dependable operation make it a cherished addition to any sewing room. With proper maintenance, this machine can still tackle a wide range of sewing projects with ease, from simple alterations to intricate garment construction.

Husqvarna Viking 6370 Features

Built-in StitchesVaried selection including straight, zigzag, and more
Electronic ControlsAdvanced for its time, providing precise stitching
Automatic ButtonholerSimplifies the process of creating buttonholes
Free ArmEnables sewing of cuffs, collars, and other small areas
Adjustable Stitch LengthAllows customization for different fabric types
Drop Feed MechanismFacilitates free-motion quilting and embroidery
Built-in LightIlluminates work area for enhanced visibility
Extension TableProvides additional workspace for larger projects
Reverse StitchingReinforces seams with ease
Multiple Presser FeetAccommodates various sewing techniques

The Husqvarna Viking 6370 may be a vintage machine, but its timeless design and solid performance make it a prized possession for sewing enthusiasts seeking a touch of nostalgia in their craft.

Causes of Common Problems with the Husqvarna Viking 6370

This section will address possible problems and solutions with the Husqvarna Viking 6370 sewing machine, focusing on specific areas:

Common Problems with Husqvarna Viking 6370

1. Thread Tension Discrepancy

Description: Uneven stitches or thread breakage during sewing.

Cause: Incorrect thread tension settings.

Troubleshooting: Adjust the tension dial to match the recommended settings in the user manual. Test on scrap fabric to ensure proper tension.

2. Jammed Bobbin

Description: Bobbin getting stuck or not turning smoothly.

Cause: Accumulation of lint or debris in the bobbin area.

Troubleshooting: Clean the bobbin area regularly. Remove lint, dust, or tangled threads. Ensure the bobbin is correctly inserted.

3. Needle Breakage

Description: Needles frequently breaking during sewing.

Cause: Use of incorrect needle size or bent needles.

Troubleshooting: Use the recommended needle size for your fabric. Replace bent or damaged needles. Check for any obstructions in the needle path.

4. Uneven Feed Dog Movement

Description: Uneven fabric feeding, resulting in uneven stitches.

Cause: Dirty or obstructed feed dogs.

Troubleshooting: Clean the feed dogs regularly. Remove lint, dust, or stray threads that may hinder smooth movement.

5. Machine Skipping Stitches

Description: The machine skips stitches intermittently.

Cause: Dull or incorrectly inserted needle.

Troubleshooting: Replace the needle with a new one. Ensure it is inserted correctly and facing the right direction according to the machine’s guidelines.

6. Bobbin Thread Tangling

Description: Bobbin thread creating knots or tangles underneath the fabric.

Cause: Incorrect threading of the bobbin or bobbin case issues.

Troubleshooting: Rethread the bobbin following the machine’s threading guide. Check for any damage or misalignment in the bobbin case and adjust if necessary.

7. Stitch Length Inconsistency

Description: Inconsistent stitch lengths, leading to an uneven appearance.

Cause: Improper adjustment of the stitch length setting.

Troubleshooting: Adjust the stitch length dial to the desired setting according to your sewing requirements. Test on scrap fabric for accuracy.

8. Feed Dog Resistance

Description: Difficulty in moving the fabric smoothly due to resistant feed dogs.

Cause: Lack of lubrication or mechanical issues with the feed dog mechanism.

Troubleshooting: Apply sewing machine oil to the feed dog mechanism as per the user manual. If problems persist, consult a professional technician for maintenance.

9. Thread Bunching in the Bobbin Area

Description: Excessive thread gathering or bunching in the bobbin compartment.

Cause: Incorrect threading of the upper thread or issues with the bobbin tension.

Troubleshooting: Rethread the upper thread following the machine’s threading guide. Adjust the bobbin tension carefully to ensure smooth thread flow.

10. Machine Not Powering On

Description: The sewing machine fails to turn on or respond.

Cause: Power supply issues, faulty power cord, or internal electrical problems.

Troubleshooting: Check the power source, ensure the power cord is securely connected, and inspect for any visible damage. If the issue persists, seek professional assistance for electrical diagnostics.

11. Uneven Stitch Formation

Description: Stitches appearing uneven, with some areas tighter or looser than others.

Cause: Incorrect presser foot pressure or misaligned presser foot.

Troubleshooting: Adjust the presser foot pressure according to the fabric thickness. Ensure the presser foot is correctly aligned and securely attached.

12. Bobbin Winding Issues

Description: Difficulty in winding the bobbin or uneven winding.

Cause: Tension disc issues or improper threading during bobbin winding.

Troubleshooting: Check the tension discs for any debris and clean if necessary. Ensure proper threading during bobbin winding, following the machine’s guidelines.

13. Needle Threader Malfunction

Description: The automatic needle threader fails to work correctly.

Cause: Misalignment of the needle or issues with the needle threader mechanism.

Troubleshooting: Reinsert the needle, making sure it is correctly positioned. Inspect the needle threader mechanism for any obstructions and clean if needed.

14. Fabric Puckering

Description: Fabric wrinkling or puckering during sewing.

Cause: Incorrect needle size for the fabric type or improper tension settings.

Troubleshooting: Use the appropriate needle size for the fabric. Adjust the thread tension and perform tests on scrap fabric to achieve the desired result.

15. Thread Fraying or Breaking

Description: Continuous fraying or breaking of the sewing thread.

Cause: Rough edges on the needle, incorrect threading, or low-quality thread.

Troubleshooting: Ensure the needle is sharp and free from burrs. Rethread the machine following the correct path, and use high-quality thread suitable for the chosen fabric.

16. Inconsistent Bobbin Tension

Description: Uneven tension in the bobbin thread, leading to irregular stitches.

Cause: Improperly adjusted bobbin tension or damage to the bobbin case.

Troubleshooting: Adjust the bobbin tension following the machine’s manual. Inspect the bobbin case for any damage and replace if necessary.

17. Noisy Operation

Description: Unusual or loud noises during sewing.

Cause: Lack of lubrication, loose components, or foreign objects in the machine.

Troubleshooting: Lubricate moving parts as per the user manual. Check for loose screws or components and tighten them. Remove any debris or foreign objects from the machine.

18. Thread Knotting at the Beginning

Description: Knots or tangles forming at the start of stitching.

Cause: Incorrect threading or issues with the needle and bobbin synchronization.

Troubleshooting: Rethread the machine, ensuring correct threading. Check the needle and bobbin for proper alignment and make necessary adjustments.

19. Limited Stitch Options

Description: The sewing machine offers only a restricted range of stitch options.

Cause: Electronic malfunction or software issues.

Troubleshooting: Check the user manual for resetting or updating the machine’s software. If problems persist, consult with the manufacturer’s customer support or a qualified technician.

20. Bobbin Running Out Quickly

Description: The bobbin seems to run out of thread faster than expected.

Cause: Incorrect bobbin winding or issues with the bobbin tension.

Troubleshooting: Ensure proper bobbin winding following the machine’s guidelines. Adjust the bobbin tension if necessary and test on scrap fabric to confirm consistent thread usage.

21. Needle Heating Up

Description: The needle becomes excessively hot during prolonged use.

Cause: Incorrect needle size for the fabric, high sewing speed, or lack of lubrication.

Troubleshooting: Use the appropriate needle size for the fabric. Reduce the sewing speed for heavy fabrics. Lubricate the needle and surrounding parts as recommended in the user manual.

22. Automatic Thread Cutter Malfunction

Description: The automatic thread cutter fails to cut the thread consistently.

Cause: Dull or misaligned blades, electronic issues, or thread thickness.

Troubleshooting: Check and replace dull blades. Ensure proper alignment of the thread cutter. Adjust settings for different thread thicknesses and clean any accumulated debris around the cutter mechanism.

23. Uneven Stitch Width

Description: Inconsistent stitch width despite correct settings.

Cause: Presser foot pressure issues, misaligned needle, or problems with the stitch width dial.

Troubleshooting: Adjust the presser foot pressure for even fabric feeding. Ensure the needle is correctly aligned, and check the stitch width dial for any irregularities.

24. Bobbin Thread Not Catching

Description: The upper thread fails to catch the bobbin thread during stitching.

Cause: Incorrect threading, bobbin placement, or needle-related issues.

Troubleshooting: Rethread the machine, ensuring correct threading of both the upper and bobbin threads. Check the bobbin placement and make sure the needle is not damaged or misaligned.

25. Stitching Machine Freezing

Description: The sewing machine freezes or stops unexpectedly during operation.

Cause: Electronic glitches, overheating, or power supply issues.

Troubleshooting: Allow the machine to cool if overheating occurs. Check the power supply, ensure all connections are secure, and restart the machine. If problems persist, consult with a professional technician for electronic diagnostics.

Husqvarna Viking 6370 Sewing Machine Manual

For comprehensive operating instructions and guidance on using your Husqvarna Viking 6370 sewing machine, please refer to the official manual available on the manufacturer’s website. The manual provides detailed information on machine features, setup, maintenance, and troubleshooting. Visit the Husqvarna Viking website to access the manual and ensure optimal usage of your sewing machine.

Frequently Asked Questions (FAQs) – Husqvarna Viking 6370

Q1. How do I adjust the thread tension on my Husqvarna Viking 6370?

A: To adjust thread tension, use the tension dial on your machine. Consult the manual for recommended settings based on your fabric type. Test on scrap fabric to ensure the desired tension.

Q2. Why does my bobbin thread keep tangling?

A: Tangled bobbin thread may result from incorrect threading or issues with the bobbin. Rethread the bobbin following the guidelines and ensure the bobbin is correctly inserted.

Q3. What should I do if my needle keeps breaking?

A: Needle breakage may be due to the wrong needle size or a bent needle. Use the recommended needle size for your fabric, replace bent needles, and check for obstructions in the needle path.

Q4. How can I resolve fabric puckering during sewing?

A: Fabric puckering may occur due to an incorrect needle size or improper tension settings. Choose the right needle, adjust thread tension, and perform tests on scrap fabric to achieve the desired result.

Q5. My Husqvarna Viking 6370 is not stitching consistently. What should I do?

A: Inconsistent stitching may result from various factors, including needle issues, tension problems, or feed dog obstructions. Refer to the manual for troubleshooting steps and check each component systematically to identify and resolve the issue.


In conclusion, for any problems encountered with your Husqvarna Viking 6370 sewing machine, it is recommended to always refer to the manual, contact customer service, or visit an authorized service center. The manual provides detailed instructions for troubleshooting and maintenance, and professional assistance can ensure effective resolution of issues. Don’t hesitate to reach out to the resources provided by Husqvarna Viking to enhance your sewing experience with the 6370 model.

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