It does sound like an "electrical" problem. I like the turning the plug over...def. worth a try.
But....
What is the table made of that you're using, even tho' the machine itself has new rubber 'feet'?
What is the chair you are using? is it a metal folding chair or like that?
What is the floor?
What are you wearing on your feet?
All this esp. if it's a "grounding" problem...
These were just some other ideas to consider.
By all means, Stay Safe!!!
Last edited by QuiltnNan; 02-07-2018 at 03:23 AM.
Reason: remove shouting/all caps