Home heating issue - Upstairs and downstairs

[Vik123]

Thanks - this morning the boiler isn't firing up!

Does anyone know of a reliable boiler expert in the Kent area (DA14)?

A plumber came and believes 99% that the pump requires changing.

What do you think of this as a replacement:

Grundfos Alpha3 15-50/60 (130) 'A' Rated/EuP Ready Domestic Circulator with Auto Adapt 240V

 

[Richard Chambers]

I have a similar problem with the same pump. Grundfos suggested the problem was the orientation of the head. The wiring MUST be at 6 o'clock if the pipe work is horizontal - they said. In my case I think I have a blockage between the boiler and the pump as the Pw is only 10w on constant speed 3 or 5w on Autoadapt.
I have not solved my problem yet, but does this orientation point make any sense?
Richard