My kitchen sprayer no longer works. I replaced the sprayer and hose but it still does not work. What else could cause the sprayer not to work?

Clogged sprayer - they get clogged up w/ mineral deposits often.

Stew1962;, Inside your kitchen sink faucet is what is called a { deverter pin } this has probably stopped working and will have to be replaced.I don't know kind of faucet you have so I!M not going to say how to fix it. call a plumber .:: thers to many different kinds out there .

Blue Eagle nailed it when he focused on the diverter. As a rule the diverter's located in the front of the valve body under the spout which must be removed to get at it. Shut the water off to the faucet and remove the handle and face plate plate. There will be a nut securing the spout so that will have to be removed as well. Pull the spout up and out. Clean out the diverter space and replace the diverter if needed. Reassemble and test. Work better now? Tom