DIY Doctor

Centaurstat 7 with Honeywell S6400c Possible Wiring Fault?

Postby V2brett » Tue Oct 06, 2015 8:55 pm

Hi everyone,

Weve just moved into a new house which has a conventional heating and hot water system with a tank controlled by the above.

The hot water slider on the 6400c doesn't fire the boiler unless the heating slider is on the 'cont' position.

Now this is fine as I understand when a centaurstat 7 is connected to the honeywell st6400c the heating slider is left in the 'cont' position and the centaurstat fully controls the heating.
Now problem is when i slide the heating slider on without the hot water and the centaurstat is not on the system makes hot water?

Does this sound like a wiring fault or programmer fault.

Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Tue Oct 06, 2015 7:23 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