Recent content by Pmbob

HW off is no1 on the new back plate right?, so where does that wire come from? Does current no 2 go to new no 3, and current no 4 go to new no 4 on the back plate or is that wrong? Is there additional wiring to be done with the back plate or the programmer? Thx btw for your help and...

I've attached the installation instructions for the Drayton LP722. I see I will need to ensure the programmer is set to 'pump'

Okie dokie. How will that affect the installation of the new programmer??

Here it is.

Hi I need to change the ancient horstmann timer (h423d) as its constant ticking is making me crazy. I'm looking to replace it with a Drayton LP722 (Mk4) Programmer. What I want the new timer to do is programme when to heat the water on its own and when to heat the radiators (I understand that...