jaguar boiler 23kW hot water

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  • davecool
    Automated Home Lurker
    • Nov 2006
    • 6

    jaguar boiler 23kW hot water

    I have a jaguar 23kW combi. the hot water runs hot and cold when the tap is at a constant flow, boiler switching on and off. any ideas.
  • sunbeam
    Moderator
    • Feb 2006
    • 261

    #2
    Re: jaguar boiler 23kW hot water

    could be the thermister,

    Comment

    • davecool
      Automated Home Lurker
      • Nov 2006
      • 6

      #3
      Re: jaguar boiler 23kW hot water

      sad to say a shiny new thermister has been fitted and the boiler still cuts in and out as it did before ! Could be time to get the hammer out and give it a good thump!

      Comment

      • sunbeam
        Moderator
        • Feb 2006
        • 261

        #4
        Re: jaguar boiler 23kW hot water

        i take it the central heating works ok?

        Comment

        • davecool
          Automated Home Lurker
          • Nov 2006
          • 6

          #5
          Re: jaguar boiler 23kW hot water

          central heating is working a treat.

          Comment

          • sunbeam
            Moderator
            • Feb 2006
            • 261

            #6
            Re: jaguar boiler 23kW hot water

            if you put the central heating on and then turn on a hot tap does it do the same thing?

            Comment

            • myk
              Automated Home Lurker
              • Dec 2006
              • 1

              #7
              Re: jaguar boiler 23kW hot water

              Sounds like the plate to plate heat exchanger is blocked.needs replacing

              Comment

              • davecool
                Automated Home Lurker
                • Nov 2006
                • 6

                #8
                Re: jaguar boiler 23kW hot water

                hi sunbeam. yes the same thing happens with the heating on or off. Do you think the plate to plate is blocked as myk sugests ?
                Thanks myk
                Dave

                Comment

                • davecool
                  Automated Home Lurker
                  • Nov 2006
                  • 6

                  #9
                  Re: jaguar boiler 23kW hot water

                  I take it that is another name for the secondary heat exchanger?
                  Dave

                  Comment

                  • sunbeam
                    Moderator
                    • Feb 2006
                    • 261

                    #10
                    Re: jaguar boiler 23kW hot water

                    good shout myk, i've never come across one blocked but then again were're blessed with quality water up here.

                    Comment

                    • davecool
                      Automated Home Lurker
                      • Nov 2006
                      • 6

                      #11
                      Re: jaguar boiler 23kW hot water

                      our water is rubbish, very hard. we have a descaler fitted but I am not sure how well they work!
                      Dave

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