This boiler was in the house when we moved in. Last year we had a problem the hot water was working but no central heating. We called someone out, I was'nt in when he came but he drained the whole system and it was ok. Turned the heating on the other morning and it was ok, but the nextday it would'nt work. We have hot water, but no heating. The pressure dial is just under 1 bar.
any ideas?
any ideas?