While you wait for answers, we may have found some information which could help you.
Click here for Hot Water DisplayRemeha Avanta Plus 28c no hot water but still have heating?
How can I fix my Remeha Avanta Plus boiler?
Remeha Avanta Plus not not activating heating?
My Remeha Avanta 28C condensing boiler shows an error code?
help with remeha avanta plus combi boiler?
Remeha Avanta plus?