In article ,
Mark wrote:
bit of help need from anyone familiar with CH systems My daughter has
just bought a house which she will not be moving into for some time the
Honeywell st712 programmer is dead no live feed to it and its on the
ground floor and the wiring centre is on the 1st floor, it is a Y-plan
with a 3 port valve I want to make a temp connection to switch the
heating on if the weather gets bad so would a live connection to
terminal 4 on the wiring centre turn the heating on ?

All heating systems should have an isolating switch somewhere - often an
FCU. You need to check for that and make sure it is on and the fuse OK. If
you can't find it, ask the previous owner (if possible)

--
*I wonder how much deeper the ocean would be without sponges*

Dave Plowman London SW
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