Originally Posted by paulsmith544
It`s so simple your heater is small like they come in sizes i think you have the smallest on the thing you should do for right now is to open half of the cold water and half of hot and then take a bath so it would not be too cold or hot..
The OP indicated that they had NO water in their post. As Joe mentioned it could be a frozen pipe. We will probably never find out as the poster seems to be a "one hit wonder" expecting an instant answer.