Janome 9450 Problems: 11 Common Issues And Solutions

Janome 9450 11 Common Problems And SolutionsAre you experiencing some problems with your Janome 9450 and feeling frustrated? Don’t worry, many users face similar issues with this popular machine, but fortunately, most of these problems can be easily resolved. 

So, what are some common Janome 9450 problems and their solutions? 

Janome 9450 problems are needle/thread breaking, bobbin issues, thread tangles, and fabric feeding issues. To fix them, follow the instructions from the manual, use the correct needle/thread, adjust tension and clean the machine.

In this article, we will guide you through the 11 most common problems and their solutions. Also, we will provide some tips for maintaining your Janome 9450 to prevent future issues.

The Janome 9450 is a popular computerized sewing machine that offers a range of features and functions for sewists of all levels. However, like any other machine, it may encounter problems that can hinder its performance.

janome 9450 troubleshooting
Source: janome

So, before jumping off to the next section let’s give you an overview of the problems along with solutions.

Needle thread breakingWrong needle or incorrect insertionUse correct needle and insert it correctly
Thread breakingIncorrect thread tension or low-quality threadSet thread tensions properly and use high-quality thread
Seam puckeringIncorrect Thread tension or fabric handlingSet thread tensions properly, adjust stitch length/width, and properly support fabric
Bobbin issuesIncorrect bobbin insertion or dirty/damaged bobbin caseInsert bobbin properly, clean bobbin case, and replace if damaged
Thread tanglesThread is twisted or knotted, incorrect thread tensionRethread the machine, check and adjust thread tension settings
Skipping stitchesImproperly inserted or bent/dull needle, incorrect thread tensionUse correct needle and insert it properly, replace needle if needed, adjust thread tension
Machine won’t turn onLoose power cord, faulty outlet, off power switch, or wiring issuesCheck power cord and outlet, ensure power switch is on, and seek professional repair if necessary
Machine jammingBobbin issues or needle/thread issuesEnsure bobbin is inserted and wound properly, clean bobbin case, check needle/thread
Unusual machine noisesLack of lubrication or issues with gears/beltLubricate machine and seek professional repair if necessary
Fabric not feeding properlyDisengaged or clogged feed dogs, improperly installed or tensioned presser foot, or fabric/thread issuesEnsure feed dogs are engaged and clear, properly install and adjust presser foot, check fabric/thread
Complete shutdown due to computerizationDamage or malfunction in machine componentsCheck LCD display for warnings and follow instructions for repair/replacement

Now let’s discuss the Janome 9450 problems in detail like we did in the Janome 6600 problems.

Problem 1: Needle Thread Breaking

While sewing the needle thread keeps breaking because of using the wrong type or size of needle for the fabric you are sewing. Also, incorrect needle insertion can cause the needle to break frequently.


Use the correct needle for your fabric and insert it correctly with the flat side facing the back of the machine. Also, replace the needle frequently to prevent it from becoming dull or bent.

Problem 2: Thread Breaking

Thread of your sewing machine could break due to incorrect thread tension or using low-quality thread. Also, using old threads could be the reason.


Check that the upper and lower thread tensions are properly set according to the machine’s manual. Also, use high-quality thread and replace it frequently to prevent breakage.

Problem 3: Seam Puckering

Seam puckering occurs due to Incorrect thread tension or incorrect fabric handling.


Check that the upper and lower thread tensions are properly set according to the machine’s manual. Adjust the stitch length and width if necessary. Properly support the fabric while sewing and avoid stretching or pulling it.

Problem 4: Bobbin Issues

Bobbin issues can occur when the bobbin case is dirty or damaged, or if the bobbin thread or the bobbin itself wasn’t inserted correctly.


To solve bobbin issues, ensure that it is properly inserted with the thread wound around it correctly. Additionally, regularly clean the bobbin case and replace it if any signs of damage are present. Lastly, make sure that the bobbin and the bobbin thread is inserted properly.

Problem 5: Thread Tangles

Uneven stitches can occur due to tangled thread, which happens when the thread becomes twisted or knotted during sewing.


Rethread the machine and adjust the tension settings for both upper and lower threads. Also, take your time while sewing and avoid pulling the fabric too quickly through the machine.

Problem 6: The Machine is Skipping Stitches

Skipping stitches occurs when the needle is inserted improperly, bent, or dull. Incorrect thread tension is another reason.


Check that the needle is inserted correctly and is the appropriate size and type for the fabric you’re using. Replace the needle if it’s bent or dull. Adjust the thread tension according to the machine’s manual.

Problem 7: The Machine Won’t Turn On

The machine won’t turn on if the power cord is loose, or the outlet is not working. Also, the power switch could also be in the off position, or there could be an issue with the machine’s internal wiring.


Check that the power cord is securely plugged in, and try a different outlet. Ensure the power switch is turned on, and if none of these steps work, take the machine to a repair technician.

Problem 8: The Machine is Jamming

Your Janome 9450 machine could be jamming for bobbin issues. The bobbin may be improperly inserted or wound. Also, the bobbin case could be dirty. Otherwise, the needle or thread itself could be the issue.


Ensure the bobbin is inserted properly and wound correctly. Clean the bobbin case of any debris. Check that the needle is properly inserted and the thread is not tangled or knotted. Remove the thread and re-thread the machine if necessary.

Problem 9: The Machine is Making Unusual Noises

You can hear unusual or grinding noise from your machine. It could happen if the machine is not well lubricated or there could be an issue with the gears or belt.


Follow the manufacturer’s instructions to lubricate the machine. Use good quality oils to lubricate your machine like 3 in 1 oil. If that doesn’t work, take the machine to a sewing machine repair technician.

Problem 10: The Machine is Not Feeding Fabric Properly

The machine could not not feed the fabric properly when the feed dogs are not properly engaged or clogged with debris. Another reason could be the presser foot is improperly installed or too loose or tight. The fabric or thread could also be the issue.


Check that the feed dogs are engaged and free of debris. Ensure the presser foot is installed properly and adjust its tension if necessary. 

Also, check that the fabric is aligned correctly and the thread is not tangled or knotted. Remove the thread and re-thread the machine if necessary.

Problem 11: Complete Shutdown Due to Computerization

If there’s any damage or malfunction in one of the components of your Janome MC9450 sewing machine, the entire machine may stop functioning. This means that you won’t be able to use it until the issue is resolved or the faulty component is replaced. 

Also, you won’t be able to control the sewing process by yourself, as the machine will take over the control. Refer to image below for a visual understanding.

Complete Shutdown Due to Computerization
Source: janome


The Janome MC9450 sewing machine has a LCD touch screen that shows warnings about any problems that may occur while using it. This display will tell you where the problem is and also provide instructions on how to fix it. It will give you a step by step solution.

By addressing these problems, you should be able to solve any problems with your fabric not feeding smoothly during sewing.

Janome 9450 Care And Maintenance Guide 

Here are some maintenance and care tips for your Janome 9450 machine.

  • Always turn off and unplug the machine before you start cleaning to prevent any accident. 
  • Don’t take your machine apart unless the manual tells you to do so.
  • Always keep your machine in a dry and cool spot. Make sure that your machine is not exposed to direct sunlight or high humidity.
  • Clean the outside of your machine by using a soft cloth. Don’t use any harsh chemicals as it could damage your machine.
  • Clean the hook area of your machine once a month. To do this, remove the needle plate, needle, presser foot, bobbin, and bobbin holder.
  • Use a brush to clean the bobbin holder and feed the dog, and then wipe them with a soft cloth.
  • Use a soft cloth to clean the hook race.
  • If you need to clean the thread guide plate under the top cover, first remove the needle thread and thread guide plate by pulling it up.
  • Use a brush to clean the area around and under the pre-tension leaf.
  • Once you’re done cleaning, reassemble the machine by putting the bobbin holder back into the hook race with the knob next to the stopper. Then, insert the bobbin and reattach the needle plate, presser foot, and needle.
  • Finally, push the thread guide plate back down until it clicks into place.
  • Service your Janome 9450 machine once a year to ensure optimal performance of your machine.

By following these maintenance and care tips for your Janome 9450 machine, you can help keep it in good working condition for years to come.

Frequently Asked Questions (FAQs):

What is The Best Thread to Use in A Janome?

Iris Ultra Cotton Quilting Thread is a great choice for use in a Janome sewing machine. It’s a premium quilting thread that runs well in Janome machines and is available in a custom gift box with 12 mini king spools.

What Embroidery Format does Janome use?

Janome embroidery machines use a format called “Jef” for their embroidery designs. It is a digital file format that can be created using embroidery software programs or purchased from embroidery design websites.

What is The Correct Tension For Sewing?

The correct tension setting is typically between 3 and 5 for most machines on the tension dial. A setting of 4.5 is generally considered optimal, but not all machines have that option. So, make sure you adjust the correct tension for optimal performance.


So, to sum it up, the Janome 9450 problems can be frustrating but don’t worry! This guide has gone over 11 of the most prevalent problems that can arise and offered practical solutions to fix them. 

By following the advice and suggestions provided, you should be able to tackle most of these problems independently. Best of luck with your sewing endeavors!

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