While you wait for answers, we may have found some information which could help you.
Click here for Working Ideas HouseHow can I fix my Aqualisa Aquastream Shower?
Aqualisa Quartz digital shower ?
Boost mode stuck on after a power cut?
Aqualisa (blue led) quartz digital not working?
Aqualisa power shower?
How can i mend my aqualisa digitalpumped shower unit?