Upon arrival customer stated they have two showers that are only getting warm water. MyGuy determined that the home was only 2 years old and because of this we created options to start with a minor diagnostic to check out the high temperature limits on each shower as well as options to replace cartridges if the high temp limit was not the issue. Upon removal of the trim plates we realized the high temp limit was not set correctly resulting in only warm water coming from both showers. MyGuy adjusted each high temp limit in each shower and both showers are now functioning as they should.