Question about Janome 4623 Mechanical Sewing Machine

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Sewing machine problelm

The stop motion knob on an older Janome will not turn (in order to fill bobbin). Any suggestions?

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5 Suggested Answers

SOURCE: Janome Memory Craft 4900 QC

its the sensor on the bobinwinder who are loose. If you are handy. you can remove the top cover of the machine.
And on the left side of the bobinwinder you will find a micro switch. Probably you have to tighten the screw on it..

Posted on Feb 20, 2008

  • 2 Answers

SOURCE: Janome sewing machine bobbin winder

I had that problem the first time I tried to wind a bobbin. What a mess. The next time I let the thread run through my finger and thumb before reaching the bobbin. I had to do the same on a previous Kenmore.

I've also found that the heavier Bernina bobbins don't 'jump' around.

Posted on Mar 25, 2008

  • 255 Answers

SOURCE: Tension dial on my sewing machine is not working

Hi, Liz. When you adjust your tension, be sure the pressure foot is down. The pressure foot needs to be up when you thread the machine so the thread will slip easily between the tension disks, but when you adjust the tension the disks have to be tight (pressure foot down).

There are other possibilities, but this is the best place to start running the problem down. Please let me know if this does the trick, ok, and if not, we can try something ele.

Happy Sewing


Posted on Apr 01, 2010

SOURCE: I have a Janome 6260. My machine sewed great, but

I've had the Lo come on my screen of my sewing machine also, but normally when I turned it off it corrected the jam up.
Lo- A button is pressed when the machine halts due to a overload
wait 15 seconds to recover
if thread jamming causes the overload, remove the tangled thread
check the bobbin area for lint & loose threads
also check to see if the bobbin is warped
check you needle to see if it's bent-roll on a flat surface to see if it rolls correctly
if it's blunt it makes a popping sound when going thru fabric
let me know if these suggestions help

Posted on Sep 23, 2010

  • 2019 Answers

SOURCE: I have a janome 8050

The key to proper stitches is that tension on the bobbin must equal the tension on the upper thread spool as well. The bobbin has a tension screw that may have come loose or the thread is not properly in the tensioner. For example, the bobbin could be in backwards. Or the tension of the top could be too light and allowing the tension on the bottom to pull the thread down too much.
Open the bobbin tray and watch while you slowly rotate the hand control to see it make a stitch.
You will probably be able to figure out what is wrong.

Posted on Apr 08, 2011

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Check around and see if it fell off when you removed the knob, or check to see if it is stuck inside the knob.

The washer is about 1" in diameter with a couple little tabs on it.
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Dec 03, 2008 | Sewing Machines

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