Thanks
It seems that I do have a Y plan but no other wiring diagrams available.
Is it possible to wire up this timer as us or am I left with 2 options..
1. Return timer to supplier and look for s unplanned timer
2. Convert to s-plan. (Is this costly?)
Hi
I am trying to replace a central heating timer and I am having some trouble working out out to wire it correctly.
My old system is wired with this diagram.
My new system has this diagram.
I have tried replacing what I thought was like for like but it hasn't worked.
B2...
