We may have found other answers which could help you.
Click here for Heating Thermostat ElectricianI have a Remeha boiler - there is no error message but the rads dont work?
pressure gauge fault?
How can I fix my programmer RWB2 ?
how can i fix my item?
Remeha boiler backfiring?
My Remeha Avanta 28C condensing boiler shows an error code?