Bad foot pedal was broken, and caused my Singer 4423 Sewing Machine not to sew. It acted as if there was no power aside from the light.
Purchased a replacement pedal on Amazon and singer sewing turns on repaired the problem and machine works like new again.
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Thanks for watching!
Foot Pedal: http://amzn.to/2CKQMiU
Sewing Machine: http://amzn.to/2kRe1k5