Thread: 401 acting up
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Old 07-23-2018, 04:29 PM
  #2  
Rhonda K
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Join Date: May 2017
Location: Sunny Florida
Posts: 4,472
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I don't know your machine but check the bobbin. Make sure it is wound tight and even. I had major problems only to discover the bobbin was mushy.

Hopefully, others will have more suggestions for you.
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