While you wait for answers, we may have found some information which could help you.
Click here for Shower Cold GainsboroughGainsborough 2000x leaking from bottom of copper cylinder ?
Gainsborough 8.5 se hot/ cold water problems ?
Gainsborough Impulse 9.5 electric shower?
Gainsborough 2000x shower?
Gainsborough 9.5 on/off switch repair?
how do you remove font cover from a gainsborough 9.5kw deluxe electric show?