I guess (probably wrongly) that the pilot light has gone out. I folled the
instructions and turned it of at the mains, turned it back on again, turned
it all to high, and the pilot should have lit. You cant see the pilot so
there is no way to see if it worked.


You really have no way of observing the pilot light? no push button to create
the spark to light it? - Never seem a system like that before - I'll leave this
to the experts!