Follow each step carefully.
Locate the water supply valve and turn it clockwise to shut off the water.
Use a wrench to loosen and disconnect the water supply hose from the valve.
Unscrew the screws holding the water supply valve in place using a Phillips screwdriver.
Pull the valve out gently from its housing.
Check for any damages or blockages, and replace any faulty components.
Insert the repaired valve back into its housing and secure it with screws.
Tighten the water supply hose back onto the valve using a wrench.
Turn the water supply valve counterclockwise to restore water flow.