Hi Pete,
Yes, it is the 80B FF. I didn't realise significance of FF.
Just to add a little bit that may be important - I recently had a un-vented cylinder system fitted so that hot water from hot taps and showers is at cold mains pressure. This has worked fine for a few months but now the...
My Glowworm Hideaway balanced flue boiler keeps cutting out and the green reset light comes on. I turn the knob to reset and the boiler will re-ignite though it does seem to have some difficulty doing this - sometimes re-ignition is on the second or third attempt. I have to do this several times...