A problem in your bathroom taps can cause it to not function. Luckily, there are some things you can do yourself to fix it. First, you should check the valve that controls the water flow in your house. This valve is typically located in the basement or under the sink, near the water heater. If the valve is stuck, you can try running water through it. If this doesn't work, you need to contact your water supplier. If you have a separate spray nozzle faucet, the stutter valve may be stuck. Simply running water through it may fix the problem.