Brother ST371HD Common Problems and Troubleshooting

The Brother ST371HD is a perfectly designed heavy-duty sewing machine for those requiring flexibility and durability. This strong and durable sewing machine is perfect for everyday sewing and mending on everything from thick outdoor fabrics to lightweight and elegant silks.

Throughout this article, we’ll cover a wide range of issues that you might encounter, such as threading errors, tension problems, stitch irregularities, and more. With each problem, we’ll provide step-by-step instructions on how to identify the root cause and implement effective solutions to rectify the situation.

Brother ST371HD Overview

The Brother ST371HD is a heavy-duty sewing machine that comes with 6 sewing feet, offering versatile options for a wide range of sewing projects. The machine features a spring action zigzag foot and nonstick, blind stitch, zipper, buttonhole, and button sewing feet. The drop feed feature allows for free-motion sewing, making it easier to work on various projects.

The ST371HD has several user-friendly features, including an easy needle threader, jam-resistant Quick-Set drop-in top bobbin, automatic bobbin winding system, and a free arm for sewing cuffs, sleeves, and jeans.The ST371HD includes a metal needle plate for smoother fabric feeding and heavyweight needles. With 37 utility and decorative stitches, including blind hems, stretch stitches, buttonholes, and zipper insertion, this exceptional sewing machine offers great value.

Product Details and Features

Brand	Brother
Color	6 Included Sewing Feet
Material	Metal
Product Dimensions	7.87″D x 16.1″W x 12.21″H
Item Weight	6.6 Kilograms (14.52 pounds)
Power Source	Corded Electric
Is Electric	Yes
ASIN	B01E54NNSC
Country of Origin	Vietnam
Item model number	ST371HD
Customer Reviews	4.5 out of 5 stars (2,241 ratings)
Best Sellers Rank	#8,465 in Arts, Crafts & Sewing (See Top 100 in Arts, Crafts & Sewing) #35 in Sewing Machines
Is Discontinued By Manufacturer	No
Care Instructions	Hand Wash
Assembly Required	No
Number of Pieces	1
Batteries Required	No
Included Components	Instructional DVD, Bilingual user manual, 6 Sewing feet, Accessories

Causes of Common Problems with the Brother ST371HD

In this section, we will address possible problems and solutions related to the Brother ST371HD sewing machine.

Common Problems with the Brother ST371HD and Troubleshooting

1. Needle Breakage

Description: One common issue users may encounter is needle breakage while using the Brother ST371HD sewing machine.

Cause of the problem: Needle breakage can occur due to several reasons, such as using the wrong needle size or type for the fabric, inserting the needle incorrectly, or the needle being damaged or bent.

Troubleshooting: To resolve this problem, follow these steps:

1. Ensure you are using the correct needle size and type for the fabric you are working with, as indicated in the machine’s manual.
2. Double-check that the needle is inserted correctly, with the flat side facing the back and fully secured in place.
3. Inspect the needle for any signs of damage or bending, and replace it with a new needle if necessary.

2. Bobbin Thread Tension Issues

Description: Some users may face difficulties with bobbin thread tension, leading to uneven stitches or thread bunching on the fabric’s underside.

Cause of the problem: Incorrect bobbin threading, improperly wound bobbin, or incorrect tension settings can cause bobbin thread tension problems.

Troubleshooting: Follow these steps to adjust the bobbin thread tension:

1. Remove the bobbin and ensure it is wound evenly and correctly following the machine’s manual instructions.
2. Check that the bobbin is inserted into the bobbin case correctly, with the thread unwinding in the correct direction.
3. Adjust the bobbin tension using the tension screw on the bobbin case. Turn the screw slightly clockwise to increase tension or counterclockwise to decrease tension.

3. Machine Jamming

Description: The machine may jam and seize up, preventing smooth sewing operations.

Cause of the problem: Jamming can occur due to tangled threads, improper threading of the machine, or debris in the bobbin area.

Troubleshooting: To resolve a jammed machine, follow these steps:

1. Turn off the machine and disconnect it from the power source.
2. Carefully remove the fabric and any tangled threads from the machine.
3. Check the bobbin area for any debris or tangled threads and clean it thoroughly.
4. Rethread the machine, following the correct threading sequence as per the machine’s manual.

4. Uneven Stitches

Description: Users may notice uneven or skipped stitches while using the Brother ST371HD.

Cause of the problem: Uneven stitches can result from various factors, including incorrect needle threading, incorrect needle size, or a damaged needle.

Troubleshooting: To achieve even stitches, follow these steps:

1. Ensure the needle is threaded correctly, passing through all the thread guides and the needle’s eye.
2. Check that the needle is securely in place and not damaged or bent.
3. Use the appropriate needle size and type for the fabric you are working with.

5. Machine Not Powering On

Description: Some users may face issues with the machine not powering on despite being connected to a power source.

Cause of the problem: This problem can arise due to a loose power cord connection or a malfunction in the machine’s power supply.

Troubleshooting: Follow these steps to address the machine’s power issues:

1. Check that the power cord is securely plugged into both the machine and the power source.
2. Try using a different power outlet to ensure the issue is not with the electrical source.
3. If the machine still does not power on, contact Brother’s customer support for further assistance or to check for possible power supply issues.

6. Thread Tension Discrepancies

Description: Users may experience issues with inconsistent thread tension, leading to loose or tight stitches.

Cause of the problem: Incorrect threading, improper tension adjustments, or debris in the tension discs can cause thread tension discrepancies.

Troubleshooting: To fix thread tension issues, follow these steps:

1. Rethread the machine, ensuring the thread is correctly guided through all tension discs and guides.
2. Check the machine’s tension settings and adjust them according to the fabric and thread being used.
3. Clean the tension discs and the surrounding area to remove any debris or lint buildup.

7. Skipped Stitches

Description: Some users may encounter problems with stitches being skipped, resulting in uneven seams.

Cause of the problem: Skipped stitches can be caused by a dull or damaged needle, incorrect needle size, or improper threading.

Troubleshooting: Follow these steps to address skipped stitches:

1. Replace the needle with a new one, making sure it is the correct size and type for the fabric.
2. Check that the needle is inserted properly and securely in the needle clamp.
3. Ensure the machine is threaded correctly and that the thread passes through all the necessary guides and tension discs.

8. Bobbin Winding Problems

Description: Users may encounter difficulties with the bobbin winding process, leading to unevenly wound bobbins or thread tangling.

Cause of the problem: Incorrect bobbin winding setup, loose bobbin winding tension, or debris in the bobbin winding area can cause bobbin winding problems.

Troubleshooting: To resolve bobbin winding issues, follow these steps:

1. Ensure the bobbin winding setup is correct, and the bobbin is placed securely on the winding spindle.
2. Check the bobbin winding tension adjustment and adjust it if necessary.
3. Clean the bobbin winding area to remove any lint or debris that may be interfering with the winding process.

9. Feed Dog Jamming

Description: The feed dogs, which help move the fabric during sewing, may get stuck or fail to advance the fabric properly.

Cause of the problem: Jammed feed dogs can be caused by lint or debris accumulation, improper maintenance, or mechanical issues.

Troubleshooting: To address feed dog jamming, follow these steps:

1. Turn off the machine and unplug it from the power source for safety.
2. Clean the feed dog area thoroughly, removing any lint, threads, or debris that may be causing the jam.
3. If the feed dogs still don’t move freely, consult the machine’s manual for guidance on lubricating or adjusting the feed dog mechanism.

10. Uneven Fabric Feeding

Description: Users may notice that the fabric is not being fed evenly, resulting in uneven seams and stitches.

Cause of the problem: Uneven fabric feeding can occur due to improper presser foot pressure, incorrect feed dog settings, or using the wrong presser foot for the fabric type.

Troubleshooting: To ensure even fabric feeding, follow these steps:

1. Adjust the presser foot pressure according to the fabric thickness and type.
2. Check the feed dog settings and make sure they are engaged properly.
3. Use the appropriate presser foot for the fabric you are working with to ensure smooth and even feeding.

11. Thread Bunching on the Underside

Description: Some users may encounter issues with thread bunching on the underside of the fabric, also known as bird’s nesting.

Cause of the problem: Thread bunching can occur due to incorrect threading, bobbin tension issues, or using low-quality thread.

Troubleshooting: Follow these steps to address thread bunching:

1. Rethread the machine, ensuring the thread is correctly guided through all the necessary paths and tension discs.
2. Check the bobbin tension and adjust it if needed, ensuring the bobbin thread is wound evenly.
3. Use high-quality thread that is suitable for the fabric and project at hand.

12. Uneven Buttonholes

Description: Users may face difficulties with creating consistent and well-formed buttonholes.

Cause of the problem: Uneven buttonholes can result from incorrect buttonhole foot alignment, improper tension settings, or a dull needle.

Troubleshooting: To achieve even and neat buttonholes, follow these steps:

1. Ensure the buttonhole foot is attached securely and aligned properly with the fabric.
2. Check the machine’s tension settings and adjust them for buttonhole stitching.
3. Use a sharp and appropriate needle for creating buttonholes.

13. Limited Stitch Selection

Description: Some users may find that the sewing machine does not cycle through all available stitches.

Cause of the problem: Limited stitch selection can be due to a malfunctioning stitch selector or a software issue.

Troubleshooting: To address stitch selection problems, follow these steps:

1. Check if the stitch selector is functioning correctly and not stuck in one position.
2. Reset the machine to its default settings, and try selecting stitches again.
3. If the problem persists, consult the machine’s manual for troubleshooting or contact Brother’s customer support for assistance.

14. Jam-Resistant Bobbin Not Functioning

Description: Users may face issues with the jam-resistant bobbin feature not working as intended.

Cause of the problem: This problem can occur due to improper bobbin installation or a malfunctioning bobbin case.

Troubleshooting: To resolve jam-resistant bobbin issues, follow these steps:

1. Remove the bobbin and reinsert it into the bobbin case, ensuring it is correctly placed.
2. Check for any damage or debris in the bobbin case that may be affecting the bobbin’s movement.
3. If the jam-resistance feature still does not work, consult the machine’s manual or seek assistance from Brother’s customer support.

15. Noisy Operation

Description: The sewing machine may produce loud or unusual noises during operation.

Cause of the problem: Noisy operation can be caused by a variety of factors, including loose parts, lack of lubrication, or mechanical issues.

Troubleshooting: To address noisy operation, follow these steps:

1. Tighten any loose screws or components on the machine.
2. Ensure the machine is properly lubricated as per the manufacturer’s recommendations.
3. If the noise persists, consult the machine’s manual for further troubleshooting or seek professional assistance.

16. Thread Jamming in the Bobbin Area

Description: Users may encounter thread jamming or tangling in the bobbin area, leading to disrupted sewing.

Cause of the problem: Thread jamming in the bobbin area can be caused by using low-quality or old thread, incorrect bobbin insertion, or a dirty bobbin case.

Troubleshooting: Follow these steps to address thread jamming:

1. Ensure you are using high-quality thread that is suitable for the sewing machine.
2. Check that the bobbin is inserted correctly and securely into the bobbin case.
3. Clean the bobbin case area to remove any lint or debris that may be causing the thread jam.

17. Irregular Bobbin Winding

Description: Users may experience unevenly wound bobbins, leading to thread tension problems during sewing.

Cause of the problem: Irregular bobbin winding can occur due to inconsistent winding speed, loose bobbin tension, or an improperly placed bobbin.

Troubleshooting: To address irregular bobbin winding, follow these steps:

1. Ensure a steady and consistent winding speed when winding the bobbin.
2. Check and adjust the bobbin tension for even winding.
3. Make sure the bobbin is placed correctly on the winding spindle before starting the winding process.

18. Uneven Fabric Gathering

Description: Users may have trouble gathering fabric evenly, resulting in uneven or messy gathers.

Cause of the problem: Uneven fabric gathering can be caused by incorrect stitch settings, improper tension adjustments, or using the wrong presser foot.

Troubleshooting: Follow these steps to achieve even fabric gathering:

1. Ensure you are using the appropriate stitch and settings for gathering fabric.
2. Check and adjust the tension for optimal gathering results.
3. Use a gathering presser foot or a specialized gathering technique to achieve even and consistent gathers.

19. Inconsistent Reverse Stitching

Description: Users may find that the reverse stitching function produces uneven or irregular stitches.

Cause of the problem: Inconsistent reverse stitching can result from a malfunctioning reverse lever or improper stitch settings.

Troubleshooting: To address reverse stitching issues, follow these steps:

1. Check the reverse lever or button to ensure it is functioning correctly and engaging the reverse stitch properly.
2. Verify that the stitch settings are adjusted for reverse stitching when needed.
3. If the problem persists, consult the machine’s manual or seek assistance from Brother’s customer support.

20. Fabric Puckering

Description: Fabric puckering refers to the undesirable gathering or wrinkling of fabric while sewing.

Cause of the problem: Fabric puckering can be caused by using incorrect tension settings, using the wrong needle type, or sewing too quickly.

Troubleshooting: To prevent fabric puckering, follow these steps:

1. Adjust the tension settings to achieve the right balance between the upper and bobbin threads.
2. Use the appropriate needle type and size for the fabric being sewn.
3. Try sewing at a slower and more consistent speed to reduce the risk of puckering.

21. Uneven Thread Trimming

Description: Users may face issues with uneven thread trimming after completing stitches.

Cause of the problem: Uneven thread trimming can be caused by a dull or misaligned thread cutter, or a malfunctioning thread trimming mechanism.

Troubleshooting: To address uneven thread trimming, follow these steps:

1. Inspect the thread cutter to ensure it is sharp and properly aligned.
2. If the thread cutter is not functioning correctly, consult the machine’s manual for guidance on adjustments or seek professional assistance.

22. Limited Lighting

Description: Users may find the sewing area poorly illuminated, making it challenging to see while sewing.

Cause of the problem: Limited lighting can be due to a burned-out light bulb or a faulty light socket.

Troubleshooting: To improve lighting in the sewing area, follow these steps:

1. Check the light bulb to see if it needs replacing. Replace it with a new bulb if necessary.
2. If the light still does not work, inspect the light socket for any signs of damage or corrosion and replace if needed.

23. Difficulty in Free-Motion Sewing

Description: Users may encounter challenges while attempting free-motion sewing or quilting.

Cause of the problem: Difficulty in free-motion sewing can result from improper machine settings, incorrect presser foot choice, or insufficient practice.

Troubleshooting: To improve free-motion sewing, follow these steps:

1. Lower the feed dogs or engage the drop feed feature, depending on the machine model, to enable free-motion sewing.
2. Use a suitable free-motion quilting foot or darning foot for better control.
3. Practice free-motion sewing techniques on scrap fabric to gain confidence and control.

24. Uneven Feed Dog Movement

Description: Users may notice uneven movement of the feed dogs, causing irregular fabric feeding.

Cause of the problem: Uneven feed dog movement can occur due to mechanical issues, lack of lubrication, or debris in the feed dog area.

Troubleshooting: To address uneven feed dog movement, follow these steps:

1. Ensure the feed dogs are properly engaged and moving smoothly during sewing.
2. Lubricate the feed dog mechanism as per the manufacturer’s recommendations to ensure smooth operation.
3. Clean the feed dog area to remove any lint or debris that may be affecting the feed dog’s movement.

25. Automatic Needle Threader Malfunction

Description: Users may experience difficulties with the automatic needle threader not functioning correctly.

Cause of the problem: An automatic needle threader malfunction can be caused by misalignment, dirt accumulation, or damage to the threader mechanism.

Troubleshooting: To address automatic needle threader issues, follow these steps:

1. Check the threader’s alignment to ensure it lines up properly with the needle’s eye.
2. Clean the threader mechanism to remove any lint or debris that may be hindering its operation.
3. If the automatic needle threader still does not work, consult the machine’s manual for further guidance or seek professional assistance.

Brother ST371HD Sewing Machine User Reviews

Customer reviews provide valuable insights into the real-world experiences of users with the Brother ST371HD sewing machine. Here, we’ll summarize both positive and negative feedback from verified customers on Walmart’s website.

Positive Reviews from Brother ST371HD Sewing Machine Users

• Some users were satisfied with the heavy-duty capabilities of the Brother ST371HD. They found it capable of handling thick materials like denim and vinyl with ease, sewing through multiple layers without issues.
• Customers appreciated the convenience of the automatic needle threader, making threading the needle a breeze. The clear threading patterns printed on the machine also received positive remarks.
• The machine’s versatility was praised by several users, who reported successful sewing experiences with different fabric weights, from lightweight cottons to heavy upholstery materials.
• Positive feedback emphasized the ease of use, making the Brother ST371HD suitable for both beginners and advanced sewers. The included instruction manual was commended for its detailed and helpful tips.
• Several users expressed satisfaction with the overall sewing performance, mentioning consistent and neat stitching without thread knotting or bunching up.

Based on the positive reviews, it is evident that the Brother ST371HD sewing machine has garnered appreciation for its heavy-duty capabilities, ease of use, and reliable sewing performance across various fabric types.

Negative User Reviews of the Brother ST371HD Sewing Machine

• Some users experienced difficulties with the machine’s stitch consistency over time. Despite initial satisfaction, a few customers reported problems with skipped stitches and inconsistent stitching quality.
• There were complaints about fabric puckering during sewing, indicating issues with tension settings or needle choices.
• A few users encountered challenges with the machine’s automatic needle threader, finding it difficult to engage properly or experiencing jams.
• Several negative reviews mentioned issues with the feed dogs, reporting uneven or inadequate fabric feeding, which could lead to sewing difficulties.
• Some customers expressed dissatisfaction with the machine’s build quality and materials, preferring metal components over certain plastic parts.

While the majority of users were satisfied with the Brother ST371HD sewing machine, there were instances of stitch inconsistency, difficulties with certain features like the automatic needle threader, and concerns about the machine’s long-term durability.

It’s important to note that individual experiences can vary, and these summarized reviews provide an overview of common feedback found on Walmart’s website for the Brother ST371HD sewing machine.

Source: All information about user reviews is taken from the site Walmart.com.

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Brother ST371HD Sewing Machine Manual

The operating instructions and user manual for the Brother ST371HD sewing machine can be found on the manufacturer’s website. For detailed guidance on setup, usage, maintenance, troubleshooting, and safety precautions, please visit the official Brother website and locate the manual for the ST371HD model.

Brother ST371HD Frequently Asked Questions

1. How can I access the user manual for the Brother ST371HD sewing machine?

You can find the user manual for the Brother ST371HD sewing machine on the official Brother website. It contains comprehensive instructions on setup, operation, maintenance, and troubleshooting.

2. Can the Brother ST371HD handle thick fabrics like denim or upholstery materials?

Yes, the Brother ST371HD is designed to handle heavy-duty sewing tasks. It can sew through thick fabrics like denim and upholstery materials with ease, making it suitable for various sewing projects.

3. Is the Brother ST371HD suitable for beginners?

Yes, the Brother ST371HD is beginner-friendly. The machine comes with a detailed instruction manual that provides step-by-step guidance, making it easy for beginners to get started with sewing.

4. What should I do if the thread keeps knotting or bunching up during sewing?

If you experience issues with thread knotting or bunching up, first, check the threading path and tension settings. Ensure that the thread is properly threaded through all necessary guides and the needle. Adjusting the tension may also resolve the issue. Refer to the user manual for detailed instructions on adjusting the tension.

5. How do I troubleshoot uneven feed dog movement?

If you notice uneven feed dog movement resulting in irregular fabric feeding, try cleaning the feed dog area to remove any lint or debris that may be affecting the feed dog’s movement. Also, check that the feed dogs are properly engaged and moving smoothly during sewing.

6. My automatic needle threader is not working correctly. What should I do?

If the automatic needle threader is not functioning properly, ensure that it is correctly aligned with the needle’s eye. Clean the threader mechanism to remove any lint or debris that may be hindering its operation. If the issue persists, consult the user manual or contact Brother’s customer service for further assistance.

7. How can I improve lighting in the sewing area while using the Brother ST371HD?

To improve lighting in the sewing area, check the light bulb to see if it needs replacing. If the light still does not work, inspect the light socket for any signs of damage or corrosion and replace if needed. Proper lighting is essential for comfortable and accurate sewing.

8. Is it normal for the Brother ST371HD to make squeaking sounds during sewing?

While occasional operational sounds are normal, consistent or loud squeaking sounds may indicate a need for maintenance. Lubricating the appropriate parts of the machine, as advised in the user manual, can help reduce such noises.

9. What should I do if I encounter a problem with my Brother ST371HD sewing machine that is not covered in the user manual?

If you encounter a problem that is not addressed in the user manual, contact Brother’s customer service or visit an authorized service center for assistance. They can provide further troubleshooting guidance and support for your specific issue.

Conclusion

When facing any problems with your Brother ST371HD sewing machine, always refer to the user manual for guidance and troubleshooting tips. Additionally, if you encounter issues that are not covered in the manual, don’t hesitate to seek assistance from Brother’s customer service or visit an authorized service center.

Proper maintenance and following the recommended guidelines will help ensure smooth and enjoyable sewing experiences with your Brother ST371HD sewing machine.