1. Close the water supply and remove the small screws on or behind the faucet handle to remove the handle fixed to the faucet body. Some screws are hidden under metal buttons, plastic buttons, or plastic sheets that are stuck or screwed into the handle. You just need to turn on the button and you will see the handle screw installed at the top. If necessary, use some immersion lubricating oil similar to WD-40 standard to loosen the screws.

2. Remove the handle and inspect the components of the faucet. Use a large carp pliers or adjustable wrench to remove the packing nut, being careful not to leave scratches on the metal. Rotate the valve core or shaft in the same direction as when you turn on the faucet to unscrew them.

3. Remove the screws that secure the washer. If necessary, use lubricating oil soaked to loosen the screws. Check the screws and valve core, and replace them with new ones if there is any damage.

4. Replace the old gasket with a completely identical new one. A new gasket that almost matches the old gasket can generally prevent the faucet from dripping water. You should also note whether the old gasket has a sloping surface or a flat surface, and replace it with the same new gasket. Washers designed only for cold water will violently swell and block the outlet when hot water flows through, causing slow flow of hot water. Some gaskets can work in both cold and hot water, but you should make sure that the gaskets you buy for replacement are identical to the original ones.

5. Fix the new gasket onto the valve core, and then install the various components in the faucet from the beginning. Rotate the valve core clockwise. After the valve core is in place, install the packing nut from the beginning. Be careful not to leave scratches on the metal with the wrench.

6. Install the handle from scratch and replace the button or disc. Open the water supply from the beginning and check for any leaks.

Due to the variety and types of faucets, the above methods are only applicable to the replacement of some faucets. First of all, we must make it clear that when changing the faucet of a water heater, we must choose a closed outlet valve to avoid being burnt out.

文章源自：开水器配件      http://www.kplongyi.com/