Question about Sewing Machines

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Monogramming problems We begin the monogramming process and at the 45th stitch the machine beeps and says the thread has broken, but it has not. What could cause this? We re-threaded and checked to make sure there was no loose thread in there with the bobbin.

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  • monogrammom May 17, 2008

    I have the same problem. No one that I have talked to seems to know what causes this. We have gone thru recalibration....didn't work. I was told they reset a sensor...didn't work. The stitching is fine, but it takes longer and is very frustrating because the machine keeps stopping for the false alarm.



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Hi Stacbac & Monogrammom,

Could be a number of causes - below are a few to consider:

  1. a loose thread in the path of the sensor (in most cases, the upper thread break is triggered by a sensor in the upper thread path of the machine)
  2. a rough spot in the upper thread path that's catching the thread, causing it to not feed smoothly and trigger the sensor incorrectly
  3. a sensor gone bad (that still does not work when reset)
  4. a computer board gone bad (rare but possible)
Your specific machine models will dictate where the sensors are located. If you can see the sensor, look around it to see if a loose thread is the culprit. Feel the upper thread path parts of the machine for any rough spots (those you can get to at least). Rough spots can be smoothed - best done by your dealer if your machine is still under warranty or you're uncertain how to accomplish - but if you're very familiar/comfortable with machine repairs and have used an emery cloth you may be able to smooth small rough areas yourself.

Beyond blowing out any fuzz (canned air or a small air compressor) if a sensor or computer board is bad, a reputable dealer will need to take care of the problem for you (generally one who sells your brand machine as they will be able to get the parts and install them properly).

Not a perfect answer (not knowing specific machine models) but hopefully this will help you narrow down what's happening.

Happy sewing,
Kim & Linnette

Posted on Jun 27, 2008


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