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Thread: potterton puma boe combi

  1. #1
    Automated Home Lurker
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    Jun 2006
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    Default 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

  2. #2
    Moderator toscal's Avatar
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    Oct 2005
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    Default Re: potterton puma boe combi

    Whats your water pressure like.

  3. #3
    Automated Home Lurker
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    Default 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

  4. #4
    Moderator sunbeam's Avatar
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    Feb 2006
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    Default Re: potterton puma boe combi

    could be the flow switch,

    they are adjustable on the puma.

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