Hot Water on without call from Stat

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  • jay.ing
    Automated Home Lurker
    • Sep 2016
    • 5

    Hot Water on without call from Stat

    Hi

    I have evohome with the hot water kit and rad valves.

    I have just noticed that the pump was on in the airing cupboard and the HW BRD91 had a green LED on, also the boiler was firing with its BRD91 green LED on.

    I checked the Evohome controller and it was not calling for hot water. Periods for heat are 5-6 in the morning, 12-12:30 at lunch and 17:00 to 18:30.

    Since the latest upgrade has there been some anti legionnaire setting implemented? This is the only thing i can put this down to?

    System has been running fine for 12 months.

    Anyone have any ideas?
  • Edinburgh2000
    Automated Home Guru
    • Dec 2016
    • 134

    #2
    Originally posted by jay.ing View Post
    I have just noticed that the ..........HW BRD91 had a green LED on, I checked the Evohome controller and it was not calling for hot water. Anyone have any ideas?
    Is your cold water supply very cold? Have a look at this thread which could be relevant.

    Comment

    • jay.ing
      Automated Home Lurker
      • Sep 2016
      • 5

      #3
      Sweet! Just the answer I was looking for thanks

      Comment

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