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Hi Guys,

I have a multi-manifold underfloor heating system. The multi-zone manifolds all operate nicely turning things on and off as appropriate according to the main timer and the zone thermostats. The single zone doesn't listen to the thermostat and only obeys the central timer (ie on or off according to the timer only).

Firstly I should say the wiring centres are different. The multi-zone centres are both clearly labelled and it's obvious what the different bits do, but it is not so with the single zone centre, which looks like the main wiring centre by the boiler.

Here are some photos:

Multi-zone centres (fully operational):
WhatsApp Image 2019-04-18 at 20.15.40(2).jpeg
Single-zone centre (partly operational):
WhatsApp Image 2019-04-18 at 20.15.40(1).jpeg
Other parts of the single-zone setup:

WhatsApp Image 2019-04-18 at 20.15.41.jpeg WhatsApp Image 2019-04-18 at 20.15.41(1).jpeg WhatsApp Image 2019-04-18 at 20.15.40.jpeg WhatsApp Image 2019-04-18 at 20.15.40(3).jpeg

What do you think is the problem? Any help or ideas gratefully received.

Regards,

Steve.
 

Matthewd29

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