The stitch is not sewn correctly

The fabric feeds in the opposite direction.

Cannot thread the needle. (The needle threader cannot be used.)

High-pitched sound while sewing

Stitches are skipped

Fabric puckers

Bobbin thread breaks

Upper thread breaks.

Needle breaks.

The bobbin thread cannot be pulled up.

The machine does not make stitches

A broken needle has fallen into the machine.

The needle contacts the needle plate.