Like all electrical tools, how long they last is going to depend on how often you use them. There are a number of obvious and subtle signs that it's time to break up with your flat iron. I recommend if it's been longer than two years it's probably time to say adios. However, here is a quick check list to help you decide.
-Has your iron developed unstable temperature?
-Prone to over heating?
- Are the plates cracked?
-Is your style not holding as long as it use to?
-Is it taking you longer to style than normal?
-Does your Flat Iron have a expiration date?
-When you close the iron do your plates meet or is one of them slightly off?
-Have you been storing your Flat Iron in a clean dry place?
-Check the cord, are there wires exposed?
-- Is there a strange smell? This could be a sign the electrical wiring is old.
-Are the plates scratch
-Do you have breakage from the midshalf to the ends of your hair and it doesn't mean it's time for a haircut?
If you have answered yes to two or more of these then it's time to rip the bandaid off and say goodbye to your flat iron.