I have the same problem with a relatively new iron. I think it may be caused by hair spray build-up. Sometimes I use hairspray to set a curl while I am doing my whole head. Before I throw mine out I think I will try to remove the hairspray from all those nooks and crannies on the iron. Just a thought!
Since it was both of them in a short period of time I am assuming you had a power surge that fried the heating elements :-( You're outlet might be faulty or over loaded :-(
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