Question about Delta T13420 Chrome Classic Single Handle Monitor Pressure Balanced Tub and

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Water is warm not hot. How do i adjust the scorch guard?

Need to know how to breakdown this model and find the scorch guard feature. Need to adjust it for warmer water output?

Posted by mcox1301 on

  • 1 more comment 
  • Anonymous Dec 30, 2008

    I have already tried to adjust the plastic device but still not getting any hot water only luke warm. When I turn the water on in the tub then the water in the shower will get hot enough to take a bath?

  • airhound1 Feb 28, 2009

    I have an older Delta single-handle shower/tub faucet. Showers are tepid. Other showers in huse are fine. When I dissamble the valve, I fin: retaining ring, a white plastic ball with several holes in it onto which is attached the handle. All of this is in a brass valve hosuing with tow outlets containing rubber gaskets and springs. I see no adjustment possibilities. What do I need to do to increase hot water flow through this valve to the shower head and bath outlets? Thanks. [email protected]

  • Anonymous Mar 23, 2014

    the temperature of the water is not even warm



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  • 33 Answers

Here is the breakdown of the model number shown:

Delta T13420

The way to adjust the temperature is by this:

  1. Get a pocket thermometer.
  2. Turn on the water to the hottest setting.
  3. Remove handle.
  4. Check the temperature with the thermometer. (adjust to your liking, scald begins above 100 f)
  5. Set temperature by removing and rotating the plastic piece just below the handle left or right until the desired temperature is achieved.
  6. Replace handle.
This should do it.

Hope this helps and please rate this!

Posted on Dec 08, 2008


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