grohe thermostat valve

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by rolando, Mar 7, 2007.

  1. rolando

    rolando New Member

    Mar 7, 2007
    just had a grohe thermostat valve installed , water too cold or too hot, someone help me cant use new shower.
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Only think I can think of is that the supply lines are there any way for you to check that? You might want to try to call Grohe. Well, if they installed the volume control in the wrong place, maybe that would mess things up, too.

    I've only used a couple - one in my bathroom, and occassionally in a hotel and they've held their adjustments fine. There is an internal adjustment, but thatis only to make the knob temperature markings agree with the actual temperature. If I remember, the max setting is part of that - if the temperature is right, the max is right, too. Mine seemed pretty close from the factory, so I didn't adjust it.
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