potterton puma boe combi

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  • mackey
    Automated Home Lurker
    • Jun 2006
    • 2

    potterton puma boe combi

    Hello

    I have a potterton puma combi boiler recently serviced and all that was needed was a room thermostat.
    The problem i have is the hot water, the biggest one being to the shower.
    when having a shower the water is nice and hot and then all of a sudden goes freezing cold, before returning to hot and so on. i was told the problem was my shower so i've just had a new one installed but with no luck, the problem still persists. it's the same with the water from the taps, but i can live with that. anyone have any ideas as to the problem, hopefully not a new boiler.
    one other weird thing, if i have the central heating on and have a shower at the same time the water remains constantly hot. i'm not technically minded about this but surely the plumbers i've had in should know what's wrong!!
    help
  • toscal
    Moderator
    • Oct 2005
    • 2061

    #2
    Re: potterton puma boe combi

    Whats your water pressure like.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
    Renovation Spain Blog

    Comment

    • mackey
      Automated Home Lurker
      • Jun 2006
      • 2

      #3
      Re: potterton puma boe combi

      Pressure seems to be ok, the cold water is from the mains so is a bit fierce. hot water is slow to start but once it gets hot is good, apparently a design feature according to the potterton manual

      Comment

      • sunbeam
        Moderator
        • Feb 2006
        • 261

        #4
        Re: potterton puma boe combi

        could be the flow switch,

        they are adjustable on the puma.

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