Sounds like a thread jam in your bobbin area probably from the thread getting caught. Once you find the caught thread you'll need to give it all a bit of a clean and oil here's an aritcle that might help. http://ginascraftcorner.blogspot.com/2014/09/love-your-machine-and-it-will-love-you.html
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Sounds like a thread jam in your bobbin area probably from the thread getting caught. Once you find the caught thread you'll need to give it all a bit of a clean and oil here's an aritcle that might help. http://ginascraftcorner.blogspot.com/2014/09/love-your-machine-and-it-will-love-you.html