Thank you for your question. There is a rotational limit stop that can be adjusted for hotter water. To do this, first, you may want to shut off the water supply to the shower or room first if possible. Next you will need to remove the temperature control cover then unscrew the phillips head screw on the gray temperature knob. Now you will see the Rotational Limit Stop which resembles a gear. Remove this part, and in order to allow more hot water, you will need to rotate it counterclockwise just a few settings as each tooth represents 4-6 degrees, and insert it back into the handle base. After this you may test the water. Keep in mind, it is best to only adjust this gradually to avoid potentially scalding temperatures. Once you have reached the desired maximum hottest temperature, you may put the handles back on.
Date published: 2019-02-01