While you wait for answers, we may have found some information which could help you.
Click here for Shower Working HotGainsborough 8.5 se hot/ cold water problems ?
How can I fix my Gainsborough ps1200 shower???
How do I remove the hose from my Gainsborough Energy 2000 shower?
what KW is my Gainsborough ps1200 power shower as I need to replace it? Any?
Gainsborough Energy 2000x shower stopped working?
Gainsborough 2000x leaking from bottom of copper cylinder ?