DIY Doctor

Main navigation

S-Plan Heating Wiring Problem With Boiler Pump Still Running

Postby Darrenb73 » Sat Jun 02, 2018 9:14 pm

I have completed my S plan heating wiring system. The hot water and heating motorised valves both work correctly when demand is needed. When no valves are calling for heat, the boiler pump still runs and when the boiler temp drops it fires to maintain temperature, can anyone help??
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sat Jun 02, 2018 9:07 pm


Simply Build It

Postby ericmark » Tue Jul 31, 2018 6:37 pm

Normally boiler and pump come on together, the thermostats work the valves, and the valve micro switches work boiler and pump.
Rank: Project Manager
Posts: 2659
Joined: Fri Oct 02, 2009 8:49 pm
Location: Llanfair Caereinion, Mid Wales.

Display posts from previous
Sort by
Order by

  • 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