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Thread: grohe thermostat valve

  1. #1

    Default grohe thermostat valve

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

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    Only think I can think of is that the supply lines are backwards...is 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.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014


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