Question about Janome Sewing Machines

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My Heart Truth 2008 sewing machine was sewing fine when the top thread got caught between the bobbin case and the machine - and it has been producing nothing but knots ever since. I cleaned the lint out of the bobbin case area and changed the needle - what do I try next?

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  • tmagsig86 May 29, 2011

    The answer I received was generic thread tension problems. My thread is getting caught in the bottom of the machine. It wraps around the bobbin case, but doesn't make it all the way around. Then without completing the first stitch, it wraps the next stitch around the bobbin case - and gets stuck again (and again and again). it was working fine with the tension settings as they are, with the same thread and fabric one day - and just producing knots the next.

  • tmagsig86 May 30, 2011

    Thank you for not giving me a "canned" answer!

    I did know bobbins are different - and I "hid" my singer bobbins when I bought the janome. I'm sure I have the right one in the machine. I did not know they could go bad!

    I also knew all thread isn't equal. I never buy the 100% polyester thread - and can get rather picky about it. My time is worth more than the pennies the cheap stuff saves. Could a spool of thread "go bad" in the middle??

    I was expecting something like "make sure this screw is tight" or "drop some oil here". I hope these easier suggestions help - I will test them tonight!


  • tmagsig86 May 31, 2011

    Well, I changed the bobbin and put in different thread in the top. Played with a couple different stitches - a couple tried to knot - and just kept the machine going until it was consistent. THEN I put the "old" bobbin back in - and it worked! THEN I put the same "old" spool of thread in - and it worked! So - I still don't know for sure what the problem was - but I'm happy again!! Thank you for your help - and the education about bobbins!



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  • Assuming you threaded your needle right I would start with looking at your bobbin. They do go bad and you could have that thread to tought around the bobbin. If you have a spare bobbin then string a fresh bobbin, and pull the old one out and replace with the new bobbin.
  • Also note that cheap thread will mess with a sewing machine something awefull. Had this Walmart thread one time that just tore and knotted. New quality thread took care of that.
  • Also bobbins are not a one size fits all. Make sure to use the same style bobbin every time. Again, as with thread, cheap bobbins are not always netter.

Regards, Tony

Posted on May 29, 2011

  • 2 more comments 
  • Iron
    Iron May 30, 2011

    • Sure, thread can go bad just from storage. Thread is spooled, naturally, and can get become tangled or over taught further inside the spool from undo stress. Let me know how it works out for you.



  • Iron
    Iron May 30, 2011

    As for how bobbins go bad, they spin constantly but are not on bearings like a car wheel. So the inside of the bobbin that sits on the shaft begins to open up and warp and gap. When a bobbin does this it does not feed the needle properly, because its not seated properly, and you get faulty sewing. Often times you can't see with the bare eye this has happened. Trial and error is the only way. And bobbins come in wood and metal and different sizes. The wrong one, even the right one but cheap, will or may not work.

  • Iron
    Iron May 31, 2011

    • Wow, that is odd. I too am happy you got it working. Happy sewing to you!



  • Iron
    Iron May 31, 2011

    And your welcome :)



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Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs

Thank you and good luck.Don't forget to rate my answer

Posted on May 29, 2011


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