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Discuss Wiring problem? in the Underfloor Heating Forum area at

  1. finchy01

    finchy01 Plumber GSR

    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.
  2. ShaunCorbs

    ShaunCorbs Trusted Plumber GSR Top Contributor!!

    Voltage telling ch two port to open or Faulty ch two port
  3. Uheat – Wojtek

    Uheat – Wojtek Sponsor


    have you got another 2 port zone valve installed for the CH?

  4. Darren Jackson

    Darren Jackson Plumber GSR

    Have you zoned the UFH and CH with 2 zone valves, 2 room stats and a 2 channel programmer?
    • Like Like x 1
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