Make certain all valve you turn off to do this change out are back on-especially the main valve. Have you turned both hot and cold cut-off valves to the "on" position at full left turning? Next, loosen a hose at the connection to the cut-off valve. If there is water, then the valve is clear. Next, go to other end of the hose and loosen it to see if you have water. If you do, hose is clear. Next, remove the the defuser screen at the end of the spigot, and make certain it is not clogged with grit. If it is clear, your new fauct is the problem! You can trouble shoot it, or return it for another one! Hope this helps.