While you wait for answers, we may have found some information which could help you.
Success
Message
Almish heater surge model w15?
Mira advance atl electric shower?
Grohe push button flush?
Boiler over pressure on the hot-water side?
How do I fix it?
Mira excel thermostatic shower mixer?
What parts do i need to get water flowing again?
Fasco?
How can I mend my Neptune Exotic shower?
Replace cord in shower screen?
Thermal cut out switch?
Aquadart shower seal?