Moen Shower with no cold water

Discussion in 'Shower & Bathtub Forum & Blog' started by tommahawke, Jul 21, 2007.

  1. tommahawke

    tommahawke New Member

    Joined:
    Jul 21, 2007
    Hoping someone can give me some good news here. I just bought a house with a single knob Moen shower temperature control (shown). The center knob has no tension, so when you turn it, it spins 360 degrees. It does not control the water temperature at all. As a result the water comes out 100% hot and the shower is unusable. I am not sure of the model number (house is 20 years old and it looks original) but it does say standyne on the bottom and it does have two screws below the knob.

    My question, is it possible to replace/repair this knob so that it can be used to adjust the temperature without having to replace the whole valve? Having just moved in money is tight so I want to avoid tearing through the wall at all costs (there is no rear access panel). I tried removing the two screws but that didn't seem to get me anywhere. The metal faceplate is caulked to the tile. I didn't want to try prying the faceplate off if it isn't going to help anyway.

    Any advice? Thanks Tom
     

    Attached Files:

  2. Verdeboy

    Verdeboy In the Trades

    Joined:
    Jun 12, 2006
    Use a pocket knife to pry off the tear-shaped "button" on the knob. Unscrew the knob and replace it.

    PS: If the knob isn't broken, at worst, you only need to replace the cartridge.
     
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  4. tommahawke

    tommahawke New Member

    Joined:
    Jul 21, 2007
    Wow, thanks for the quick reply!
    I don't see a button to pop off. It looks like a solid piece of plastic.
     
  5. Master Plumber Mark

    Master Plumber Mark Master Plumber

    Joined:
    Feb 6, 2005
    Occupation:
    Sensitivity trainer...to be caring and loving to a
    Location:
    indianapolis indiana - land of the free, home of
    moen posi-temp

    if you dont pull out on it to get the water to come
    on it is probably the posi-temp....

    it is not fun changeing that cartridge, which costs
    about 50 bucks.

    [​IMG]
     
    Last edited by a moderator: May 20, 2009
  6. tommahawke

    tommahawke New Member

    Joined:
    Jul 21, 2007
    Sorry, I got the plastic cover off now, I'm an idiot. The inside of it was cracked so I'm hoping that is all it is. Off to Lowe's.
     
  7. tommahawke

    tommahawke New Member

    Joined:
    Jul 21, 2007
    Replacement knob took care of it, man that was easy! Thanks for your help. One less thing to worry about!
     
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