Hello.
I am only getting luke warm water in my Master shower, all my other sources are getting hot water, what might be the issue?
Thanks,
Megan

Brand name of the shower valve? What model? Temp controlled? More details please. Tom

Newer shower valves have built-in temperature balancing and/ or anti-scald device. Most likely, your shower was installed right from the box and was never adjusted. Can you snap a pic of your valve and post it for us ? We'll tell you right away how to adjust it. Back to you. Milo