A few weeks ago the cold water in my home was running with no problem throughout the entire home and a minimul amount of hot water would flow through the all of the sinks and the master shower on the 2nd floor of my home. At that same time no water would run through either bathtub on the 2nd floor. Just a few days ago the scenario switched and now I only hot water running through all of the sinks in the home except for in the hall bathroom on the 2nd fl. No water flows through the 2nd floor sink or shower, however the master bathroom has full pressured hot water running and a small flow of cold water running through the master bath sink no cold water in the tub or shower. My husband has flushed the water from the gas furnace/water heater and still to avail we have a water issue. If there is anyone who has had this issue or knows someone who has had this issue and can offer some advice we would greatly appreciate it.

Are you on a hot water heater or a combination boiler? Back to you, Tom