The Mk5 generation of GHDs includes the following models:

• GHD 5.0 (Normal width plate) - parts listing / technical info (on UK site)
• GHD SS5 (Wide plate) - parts listing / technical info (on UK site)
  
• GHD MS5 (Narrow plate) - parts listing / technical info (on UK site)
  

We have a repair guide (on UK site) that covers all these models (as they are all basically the same internally as the mk4 generation irons) here. If you don't fancy doing a repair yourself, all these models are covered by our fixed price repair service.

If you are unsure which model you have, please see our GHD models page (on UK site) which shows you pictures of all the different models.