While you wait for answers, we may have found some information which could help you.
Click here for Unit Front HotHow can I fix my Gainsborough ps1200 shower???
Gainsborough 8.5e ?
Gainsborough 8.5 se hot/ cold water problems ?
Gainsborough 2000x leaking from bottom of copper cylinder ?
Gainsborough 9.5 on/off switch repair?
gainsborough sv 800?