Thank you for your question and I am sorry that you're having difficulty with your temperature for your T14261-LHD unit. The faucet does have a rotational limit stop that can be adjusted to get hotter water.
The rotational limit stop is located on the stem of the cartridge that you can see once you take the handle off of your trim. To adjust the temperature of the water coming out of the valve, pull the disc back to a position where it is possible to remove the Rotational Limit Stop and readjust the teeth engagement position to the desired temperature. Clockwise will decrease the outlet temperature, counterclockwise will increase the outlet temperature. Temperature change per tooth (notch) could be 4° - 16°F based on inlet water conditions. Repeat as necessary. Push disc until fully seated.
Date published: 2016-11-18