My newly installed cyclinder stat doesn't appear to be switching the pump on/off or changing the 3 port valve. I assume I've wired it incorrectly. Can somebody confirm that the terminal labelled C in the cylinder stat should be wired to the 'CH on' terminal in the programmer? Also, as it is a Honeywell Y plan system, where to the terminals labelled 1 & 2 in the cyclinder stat need to be wired to?
Thanks in advance
Thanks in advance