While you wait for answers, we may have found some information which could help you.
Click here for Advice Working TodayMy Remeha Avanta 28C condensing boiler shows an error code?
Remeha avanta boiler 28 - help???
Remeha Avanta plus?
E5 Error on Remeha Avanta Plus boiler?
Remeha Avanta Plus 28c no hot water but still have heating?
help with remeha avanta plus combi boiler?