What causes car wipers not to spray water? And how should I fix it?

In the process of using the car, you may often encounter the wiper nozzle does not produce water, so what exactly is the cause of the wiper no glass water spray out? And how should we solve it? Today we will talk to you about the common causes of failure and solutions to the car wiper spray system.

The car's wiper spray system is generally composed of control switches, glass water, reservoir, water spray motor, fuse and guide pipe and other parts. That is to say, the damage to one of the above parts will lead to the vehicle wiper nozzles do not produce water failure phenomenon. Below I will talk to you about the most common causes of failure, which are the parts most likely to be damaged.

Wiper does not spray water causes and solutionsFirst, the windshield under the wiper nozzle blockage caused by the use of a long time, the internal nozzle generally accumulate scale, or stained with dust and other impurities, thus causing the blockage of the failure phenomenon. In the solution, we just need to find a large head of needle through the left and right side of the water spray nozzle spray hole can be. However, it should be noted that when dealing with it, try not to shake the nozzle nozzle holes up and down or left and right, so as not to change the original angle of the water spray, causing the glass water can not be correctly sprayed on the windscreen. If you are in the process of operation, accidentally change the angle of the water spray, it is only necessary to readjust it, it is not very complicated, you can do it yourself.

Second, the fuse and relay that controls the work of the water jet motor is blown, they are damaged will lead to no power to the water jet motor, so the phenomenon of failure to spray water. And you won't hear the water jet motor working in the car when you press the switch. You can use a test light or multimeter to check the fuse when dealing with it, and if it is damaged, replace it directly to solve the problem.

Third, the water jet motor itself is damaged, you can use a test light or multimeter to check the wires on the plug when testing, if the power supply, grounding, signal lines are not a problem, you need to replace the water jet motor will be able to solve. In addition, you can also use a tester to test the action of the water jet motor, if the positive and negative poles on the motor and the signal line are not a problem, the water jet motor itself is damaged, the solution is to replace the water jet motor with a new one. It should be noted that if the power, ground and signal in one of the wires there is a false connection, short circuit and other problems, you need to repair the wiring harness before you can solve.

Here, I recommend that car enthusiasts try to use glass water for the car's water jet washing system, rather than using tap water to detergent. This is because tap water contains a lot of limescale, which can easily block the water jet motor and nozzle holes after a long time, and detergent is weak alkaline, which can easily corrode the rubber water pipes and wiper blades in the water jet system, leading to the hardening and rupture of the water pipes, increasing the maintenance and repair costs, which is really more than worth the loss. In addition to preventing limescale, glass water for cars also has functions such as anti-freeze and hydrophobic.

Fourth, the switch that controls the work of the water jet motor is damaged, when the contact inside the switch is poor, it will lead to the water jet motor can not work, the manifestation of the failure phenomenon is the inability to spray water. Therefore, in the detection can use the diagnostic instrument to read the water jet motor data stream, if the switch is open wiper data stream display off or no change, the switch is damaged, the solution is to replace the new wiper water jet combination switch.

Five is the lack of glass water, the cause of this one failure is considered a common sense problem with the car, so put to the end to say. For the driving instrument without wiper water level prompt models, when the vehicle appears to lack of wiper water, you can first open the hood to check whether the glass water is sufficient, if there is a lack, just need to make up for it can be solved. In addition, for some Volkswagen Audi models, the wiper washer system cannot be used with the hood open, which is a special function setting and not a fault. If you encounter this type of situation, you just need to close the hood after the wiper spray will be able to work normally, yo.

These are the common causes and solutions of the car wiper spray system can not spray water, respectively, nozzle blockage, blown fuse, motor damage, switch contact ablation and lack of glass water. I hope it can help the majority of car enthusiasts, reduce the daily use of the car and car maintenance troubles!