In article ,
rick wrote:
On inspection they found it was not wired in the boiler (yellow wire
link across where stat would be wired) ... and no cable there, assume it
must have been 'cut out' when previous non-combi boiler was replaced 5
years ago. Honeywell stat certainly used to work with old boiler
(simple bi-metal type)

Have a look under surrounding floorboards etc to see if you can locate the
cable?

--
*Money isn't everything, but it sure keeps the kids in touch.

Dave Plowman London SW
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