Wiring centre - boiler switch live fallen out

[xanthophile]

A wire has fallen out of a terminal in a wiring centre I’m working on and I’m don’t know where it belongs. It is the ‘Switch Live’ leading to boiler. I was replacing the mid position valve so suspect it may share a terminal with a valve wire, can’t be certain. Diverter valve = Honeywell V4073, Programmer = ACL Lifestyle, pressurised system, Halstead boiler.

Wiring centre terminals:
1 Live supply, permanent live to boiler, live to programmer.
2 Neutral supply, neutral to programmer, room stat, pump, div. valve.
3 Earth supply, earth to div valve.
4 Room stat L, programmer 4 (CH).
5 Room stat 3, div valve white.
6 Cylinder stat C, programmer 3 (HW).
7 Cylinder stat 1, div valve orange.
8 Cylinder stat 2, programmer 1 (HW), div valve grey.

Any clues very welcome. Cheers.

 

[ollski]

is it the switched live to the pump from the boiler?

 

[xanthophile]

No. The pump live is clearly marked on boiler and that goes direct to pump via a JB, not through wiring centre.

 

[xanthophile]

Error in original post. Sorry.

Terminal 2 Neutral supply, neutral to programmer, room stat, pump, div. valve.

should read:

Terminal 2 Neutral supply, neutral to programmer, room stat, BOILER, div. valve.

 

[ollski]

how many wires are attatched to the orange from the valve?...should be pump and boiler.

 

[xanthophile]

As per original, Valve orange goes to Cylinder stat term 1 only.

 

[ChrisR]

The switched live also goes to that terminal in the wiring centre, 7 in your case.

 

[xanthophile]

I'll give it a try. Many thanks for fast responses.