DIY Doctor

Main navigation

Heatmiser UH8-RF surge fuse is keep blowing up

Postby kmp039 » Sat Mar 27, 2021 5:27 pm

We have underfloor heating installed with heatmiser UH8-RF and Grundfos UPM3 Flex As pump and Honeywll 272848 motorized valve.

It was working fine for nearly year and now it has started blowing surge fuse 5am 250v,(Fuse-2) in UH8-RF. Enire system is new and not sure why it is keep blowing surge fuse.

The person who installed it not willing to come now as he has moved to 200 miles away and before I call someone just want to know what could be an issue.

Many thanks,
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sat Mar 27, 2021 5:20 pm


Simply Build It

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics