Lurked in here for a while (interesting group to read incidentally) so
I know there are lots of CH / plumbing experts around.....

I have a Glow Worm Swift Flow boiler. This afternoon I realised the
radiators were all cooling and subsequently discovered that we had no
hot water from the taps either. Pressure in the CH system is OK and
pilot light was on, so I resigned myself to calling out an expert. But
before I did, I heard the boiler fire up and now all's back to normal.
I hadn't 'done' anything that might have fixed it.... It was probably
'out' for about an hour.

Anyone got any idea what the problem might be here? And as an aside,
anyone know where I can find (or have) an electronic copy of the manual
for this boiler, as my Googling for one has drawn a blank...

Thanks

F