<!-- from fixya rte -->Water comes out after faucet is shut off - Price Pfister Plumbing

• Get a bucket.
• Go under the counter. You'll see some shut-offs. Close those.
• Disconnect the lines -after- the shutoffs that go to the faucet.
• Some water will drip out of the lines -- catch that with the bucket.
• SLOOWWWWLY open the shut offs. WATER WILL COME OUT. A LOT OF WATER. Catch it with the bucket. You just need to crack them a little.
• When water is clear, put it back together.

If that doesn't work, then you may need to clean or replace the cartridge. Those directions depend on the type of faucet. Google "cartridge removal" and the brand/type of faucet for more details.

Shut the water off to the faucet. Open faucets above this unit to allow water to empty in the pipes.
Disconnect the water supply from the faucet.
Unbolt the faucet from the counter top.

Didn't the faucet come with directions?

I'd look at the water shut off valve that the faucet is connected to coming out of the wall. In time the rubber washer that shuts off the water flow will deteriorate enough to cause part of it to travel up line and partially block the faucet.

First check to see if the main faucet to your hot water system is turned on. It could be someone has closed it. It is located around the bottom of your system. If that is open, water should be entering the tap.. To check this shut the main faucet at your water system and using a wrench loosen the connection from the faucet to the system and slowly open the faucet to see water comes out.. If it does that means the main water serivce to the system is fine .. You can also check this at the system by gently opening the outlet connection which should be at the top of the system , ensure that the main faucet At the bottom of the system is closed, once the connection at the top has been loosened slowly open the faucet to see if water comes out of the outlet.. If it does then the problem is from the system to your household faucets.. Could be a crushed water line . Also check to see if your hot water faucet is not Jammed. Sometimes the rubber inside the hot water faucet could be blocking the water if the faucet has been recently over tightened when closed.. Hope all goes well

1) Clogged pipe?
Bad faucet cartridge?
Take apart pipe at shut off and see if there is water.
http://waterheatertimer.org/Low-hot-water-pressure.html

2) Add a comment and say what you find.

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What is likely happening is a small piece of sediment has become lodged in either the mixing valve or in the aerator.

Begin with the easiest part first. The aerator is the threaded attachment from which the water comes out of the faucet. Remove the aerator from the faucet and run the tap without it installed. If the flow rate is good either clean or replace the aerator.

If this was not the problem then the solution becomes much trickier because the obstruction is likely in one of the lines coming into the faucet or in the body of the faucet called the mixing valve. This is where the hot and cold water mix inside the faucet.

Our next step is to create negative pressure inside the faucet in an attempt to remove the buildup restricting the flow.

If you don't have shut off valves under the sink you will need to shut off the water supply to the home, remove the faucet from the vanity/sink and perform the following procedure.

Shut the hot and cold water off underneath the sink and remove the supply lines at the shut off valves but leave them connected to the faucet. You will need to purchase two adapters for the aerator that will allow you to connect a garden hose from your closest water supply (kitchen sink) to the vanity faucet. You can find these at your local hardware store. You will also need a pail under the vanity to catch the water coming out of the vanity faucet supply lines. Connect the garden hose from an active water supply to the vanity faucet. With someones help have them turn the water supply on which will then run backwards through the vanity faucet and into the pail underneath the vanity. Be sure to open the vanity faucet taps to full so that water will run through the faucet. This should dislodge the obstruction.

If the problem is that there is not enough hot water coming out, or when you can not get the hot water to shut off you may need to replace the cartridge inside the faucet.

is the feed on the bottom of the sink open . if it is shut the water off from the bottom and take apart the handle to see if something is stuck in there

you have to locate the water shut off valves before you attempt removing the water lines, hopefully they will be located on the lines under your sink, if not you will have to shut the water main off coming into the house. After you have shut the water off and disconnected the lines, look under your sink at the back were your faucet comes through the sink and you will find the fasteners, unscrew these counter clockwise and the faucet will lift out .

there is always water pressure on the sprayer when water is on. if sprayer is leaking check if trigger is stuck in . best to just change the sprayer handle it comes off at the base of the handle