How can you tell if your windshield sprayer is clogged?

You can tell if your windshield sprayer is clogged if the spray pattern is weak or nonexistent when activated. Additionally, if you hear the pump running but no fluid is coming out, this is a strong indicator of a blockage. You might also notice that the fluid is dripping from the nozzles rather than spraying. Inspecting the nozzles for visible debris and checking the fluid lines for kinks can help confirm a clog.