In message , Christian
McArdle writes
and that the heating circuit doesn't have a zone valve (electrically
operated valve) fitted to the system and is stopping the hot water
cylinder from heating.

Of course, the previous occupant may have turned off the hot water at the
programmer when they moved out.

Christian.



I've checked that already, the switch points to hot water & central
heating

--

Alastair Rainsbury "CTID" )

Amazingly, it is illegal in all 48 US states for a railway train to be equipped
with brakes.

http://www.ignis-fatuus.org