We may have found other answers which could help you.
Click here for Remeha Error Help
E5 Error on Remeha Avanta Plus boiler?
My Remeha Avanta 28C condensing boiler shows an error code?
how can i fix my item?
How can I fix my Remeha Avanta Plus boiler?
pressure gauge fault?
Remeha Avanta Plus 28c no hot water but still have heating?