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Wiring problem?

Discuss Wiring problem? at UK Plumbers Forums; We recently installed some underfloor heating for a customer. I've not done it before so enlisted some help of another plumber friend of mine. Problem. Heating only = fine. CH ...
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    Default Wiring problem?

    We recently installed some underfloor heating for a customer. I've not done it before so enlisted some help of another plumber friend of mine.

    Problem. Heating only = fine.
    CH and ufh= fine
    Ufh only = brings ch on too and can't be switched off on the room stat and rads get extremely hot.

    I've not had a chance to get back but any ideas? We put a 2 port in for the Ufh as there wasn't one supplied with the pack.

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    Default Re: Wiring problem?

    Voltage telling ch two port to open or Faulty ch two port
    IMPORTANT:
    Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.

    Want gas safety or boiler repair advice? :
    Please supply your Gas Safe / Oftec / Hetas Number, DIYers, odd job people and have a go heroes need not apply, and remember any fuel burning appliance can kill


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    Default Re: Wiring problem?

    Have you zoned the UFH and CH with 2 zone valves, 2 room stats and a 2 channel programmer?
    Uheat – Wojtek likes this.

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