Originally Posted by
Nanamoms
I'm not sure about this but I know that turning household lights off and on every few minutes is not good for them. I would think sewing machines would be more sensitive to the electricity than house lights. I leave my embroidery machine on when I have a design on the screen but not actively sewing.
The longest continuously working light bulb has been turn on for about 112 years. Well it has been turned off a few times to move the fixture and other various reasons. It was first turned on for a night light in a Livermore Ca fire house and I believe it's still there. It's said one of the reasons it hasn't burned out is because it isn't turned off and on. Not saying this would be the same in your sewing machine but who knows.