DIY Doctor

Main navigation

Pump/ Shareflow valve problem or maybe boiler?

Postby peatoire » Mon Nov 19, 2007 6:40 pm

After coming back from holiday I noticed only the upstairs radiators were working now neither hot water or CH is working, my system uses a sharflow valve which is connected to the thermostat & controller and directs water through either the HW cylinder or both HW cylinder/ Central heating system.
What seems to be happening is that the pump (although makes a strange noise from time to time) appears to br working ok, it's a Grundfos one where you can take off the screw on the fron to see if its turning, after around 5 mins the pump itself gets very hot and sounds like th water inside it is atrting to boil. The shareflow valve can be bypassed manually by a lever underneath which directs the water as mentioned above. The thing is, no water is getting past the pump and I can't be sure whether it's the pump, the valve or maybe even the boiler (potterton)
Any advice much appreciated
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Mon Nov 19, 2007 6:32 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