DO NOT use a magnetic anything near your machine, as it is computerized. I had that happen, used it for about 3 months and thought " take her in for a checkup to be safe". Repairman said" where it landed, it could have stayed there forever, but if it had landed over the other way or rolled over there, it would have been a differnt situation" Motto to this story " I will not take any more chances...the machines are way to expensive to replace"
Good Luck and let us know how you make out.