My high end kitchen faucets spray attachment is not working. What can I do?

My high end kitchen faucets spray attachment is not working. What can I do?

Remove and soak it in a 50/50 vinegar and water solution for several hours. The second most common cause is a kitchen sink faucets hose kinked under the sink. Check to be sure the hose doesn't kink when the sprayer is pulled out to be used. Third, the problem may be a blocked or damaged diverter assembly.