Kohler K-2975 Installation Manual page 17

Check the Temperature Setting (cont.)
Position a thermometer in the water stream to check the shower
temperature.
If the water temperature is less than 104°F (40°C) to 105°F (41°C)
or is more than desired, proceed to the "Adjust the Shower
Temperature" section.
If both settings are correct, fill out the "Notice to Homeowners"
section of this Homeowners Guide.
Kohler Co. 17 1145568-2-A