face id disabled by water through the bezel

My phone is having a problem with face ID it said move little lower and it is very frustrating but my proximity sensor, ambient ligth, front speakers and microphone is still working. I don’t think the flood illuminator , infrared camera and dot projector is not working.But when I use protrait mode in front camera it doesn’t change the stage ligth, stage ligth mono others also and when i use animoji it still works. How do i know my known my flood illuminator, infrared camera and dot projector is not working? If I change the flood iluminator will it work? And after trying to add face ID It said face ID is not available try setting up face ID later and I do not see the infrared light coming out from the flood illuminator.