u/lcortes9

Hi all, I have a old polypipe underfloor system in my house and it seems to blow the fuse whenever I try to put the heating on. I have a feeling my grundfos pump has now gone and needs replacing which also looks old. Really newbie question but can I swap the old grundfos pump ups 25-60 130 with a new grundfos pump ups4 go or ups3? And can it just be the header or do I need to disconnect it from the plumbing system?

If you don’t think that’s the reason for it blowing the fuse, any other wisdom would be appreciated from a family with currently no heating and relatively good at diy so trying to save money! :)

Photos for reference