washer jets are used on the front and rear windscreen of vehicles. There are two washer jets to each windscreen and are positioned in the outermost corners of the windscreen with one on the driverside of the vehicle and the other on the passenger side. They are small metal nozzles with black rubberised protective covers that help prevent them from corrosion. The washer jets are attached to motorised pumps. These pumps force water or washer fluid from the water reservoir bottle out through the nozzle of the washer jets and on to the windshield for the windscreen wiper to use when washing the windscreen.
Problems with washer jets can arise from blocked nozzles. This could be down to dirt and debris or in very cold weather, the tip of the nozzles can be frozen. If a washer jet is not spraying water on the windscreen you should first check the water reservoir bottle as this may be empty. If it has water or fluid in it, you should check for blockages. Other issues can arise from a faulty washer pump or tubing which transports fluid to the jets.