Delta diverter

[No screaming]

I have water in leaking in between the wall when diverter valve is i shower setting. Doesn't leak in bath setting. I'm fixing what some one else started so I'm not sure maybe there is a o ring missing or the valve is in the wrong direction, if that even makes a difference. I have checked and it does seem to have all O rings.O didn't think it was the water faucets because it only leaks on shower mode. Don't know the model because i didn't install the unit but the valve has a brass stem and a plastic body with three holes. If that helps

 

[Dj2]

The leak could be on the riser, from the body to the shower head. If you open the wall behind the shower you will be able to detect the leak,

 

[Sponsor]

 

[Plumber Man]

If you could post pictures of the faucet that may help.