Success ! Your comment about the blue wire going to NS made me think there was no blue wire coming from room stat, but pulling back the outer casing, there it was, cut back. Wired blue to NS, black and brown to the live terminals and switched on ! All now working fine ! Many thanks for your help !
As mentioned above, the mechanical timer was wired to the ST8 connector. The blue wire going to NS, brown going to LS and grey going to the right most terminal (not labeled). I disconnected these wires when I removed the digital timer. One thought, should the wires from the room thermostat...
Hi,
Cheers for the reply.
yes, the digital timer is powered and the red light is on, but the boiler does not fire up. When I put the analogue timer back in everything is ok. On the ST8 connector there is a black wire connected to LR and a brown connected to the right most terminal (not...
Hi there ! 1st post, so please be gentle !
Just moved into a new house and as a welcome "gift" the previous owner informed me that the old mechanical timer on the boiler was on it's way out. I have purchased a new digital timer for the boiler and connected it to the ST5 connector as per the...