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Chester
Chester, Sewing Machine Repair Expert
Category: General
Satisfied Customers: 341
Experience:  Sewing Machine Repair Expert
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Have a bernina B330 trying to do auto buttonhole bobbin thread

Customer Question

have a bernina B330 trying to do auto buttonhole bobbin thread keeps making a tangled mess on underside of fabric
Submitted: 1 year ago.
Category: sewing machine repair
Expert:  Chester replied 1 year ago.
Hi and welcome to Just answer.

Initially, may I know what are the things you have already tried so far?

Did you try to adjust your upper tension and cleaned your bobbin area?

Also did you already try to replace your needle?