Alan wrote:


Can anyone point me to a wiring diagram on-line for the Honeywell ST699 CH
programmer?
A colleague has one which is not switching the heating at the moment (but
hot water is OK) and I want to see if I can wire the heating circuit onto
the HW relay to get him going until the replacement arrives.

Try:

http://content.honeywell.com/uk/home...10%20ST699.pdf

Roger.