I had one. It would never get hot enough and would not stay hot/warm long enough. I settled the problem by "filing" the cordless and buying an inexpensive iron that shut itself off and filled my "hot" and "staying hot" needs.
I hope you find an answer for your iron. I despise it when I have something that really works for me; it quits working; and I hit the corporate "We're sorry, but ...." wall. Good luck.
Pat