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Not enough hot water

I have a single handle delta faucet in my shower. When i turn the shower on,the water never get hot enough to shower in.There is plenty of water pressure, is there an adjustment I can make to increase the amount of hot water the valve puts out? I know it is not the water heater. All other faucets work fine. Thanks, Conway

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  • 4 more comments 
  • notyepj Nov 26, 2008

    What tool do I use to remove the handle? It's hard to see, but it looks like it is close to the shape of an allen wrench, but not quite.

  • emansully Nov 28, 2008

    I would like to know the other issue that could be causing the lack of hot water with plenty of pressure. Thanks emansully

  • Vicki Gutierrez
    Vicki Gutierrez Mar 07, 2009

    Help. Delta shower bath faucet. I know what I need to do to solve this problem. Adjust the little gear looking thing towards hotter. However, I can't figure out how to get to it. The "thermostat" control is first-no screw. Then the pressure handle with a very tiny screw on the back side. I have tried both conventional and metric allen wrenches to take it off in the hopes that would get me the access I need. Nothing fits that screw. The shower/bath water just does not get hot enough. We live in Colorado and this faucet was just installed a few months. Can't get a plumber to call me back, I guess this job is just too small. Help, help, help!

  • Anonymous Mar 19, 2014

    What can I do to increase the water pressure on my Kohler Purist shower head

  • Anonymous Mar 24, 2014

    we have just had a new shower fitted and cant get any water to come through the guy that put it in says it could b the solenoid valve we only have low pressure so could this have something to do with it

  • Anonymous Mar 30, 2014

    Water cold

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Some higher end models do have an adjustment that is behind the face plate. You would have to remove the handle and the screws in the faceplate to expose them. If you have adjustments they will be located on the brass valve body facing you. You will need a flashlight and a flathead screwdriver to make the adjustment. If your model is not equipped with adjustments you could have a faulty valve stem. The stem is comprised of a rubber band like gasket that separates port holes into which the waters flow. There could be some piece of trash blocking the port not allowing adequate water from the hot side into the valve.Some valves stems are also able to be installed upside down causing the same issue as the ports do not rotate fully to allow adequate supply. However you say that you have adequate pressure on the hot side but not warm enough. There is another possibility also based on the way the shower supply was plumbed but there is no need to go into this unless this does not resolve your issue. I hope this is of assistance and thanks for using Fix Ya. Please let me know if I can be of further assistance.

Posted on Oct 21, 2008

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