While you wait for answers, we may have found some information which could help you.
Click here for Boiler Model HouseI have moved into a flat am dissabled carnt get heating on unit flashing F1?
My central heating is not working?
Central heating not working?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
GS 24i junior boiler timer broken?
My radiators not heating up?