Can a soldering iron "burn down"
Stupid idiot me just realized that I left my soldering iron plugged in all night. Amazingly enough it's not really hot as I tough it would be. (No, I did't touch it, my kitten did. J/K).
Is it possible that something inside the iron "burned out" causing it to stop from getting hotter? Or does it have a sort of limit when it stops warming up?
Thank you and please excuse my ignorance in this subject.
edit: Sorry, I forgot to mention it is a very common 30W soldering iron.