While you wait for answers, we may have found some information which could help you.
Click here for 80 Gas Boiler
Central heating not working?
My central heating is not working?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
fitting thermostat?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
GS 24i junior boiler timer broken?