no heating?

if the boiler has low water pressure it will not work on either heating or water it gos into lock out mode. could be the heating sensor.need to go through a diagnostic to get more info

hi-spec plumbing
November 2006

Not good this time of year - I had one of these boilers several years ago which did the same - check that you have water pressure in the central heating system - if there is no pressure the system will not start up - from what I remember you need at least 15 psi (1 bar) to start - If I think of anything else I will add - good luck !!

Martin Hollebone - Northampton
November 2006