We have a 4 year old house. A while back the hot water side of the sink in the master bath started acting up. When we turn the hot side on, it makes a hammering sound and no water comes out. If we turn it on really low, it drips or streams, but any higher and it shuts off completely. We have plenty of hot water everywhere else in the house, even in the master tub. I am completely lost and we have put this off long enough. Thanks in advance for your help!