Originally Posted by
carolynjo
Not only should you unplug your machine then, but you should unplug it whenever you are not sewing. Think--lightning strike, power surge, etc.
I don't unplug my machines usually but if we have storms coming in, I will unplug them definitely (even with a surge protector in use). We had a TV blow while it happened to be plugged into 2 surge protectors (needed the extra length).
I used to have my main sewing machine on a backup battery unit until my son needed it for his computer. This is good to keep the power consistent even during nice weather. I probably should invest in another one (run around $50).