1. The wiper blade itself produces abnormal sound.

Wiper blades are rubber products, which will age and harden after a period of use, especially in winter. If it can't be scraped clean, the simplest and most effective solution is to directly replace the new wiper blade. It is generally recommended to replace the wiper blade once every two years.

2. Abnormal sound caused by foreign matter between wiper blade and windshield.

When the wiper is turned on, there will be a sharp rubbing sound between the wiper blade and the front windshield. The owner can check and clean the foreign objects under the wiper blade or wiper to ensure the cleanliness of the wiper blade.

3. Friction sound of wiper connecting rod bushing

The old wiper linkage of the vehicle will age, the spring force of the wiper arm will decrease, and the bushing will wear or even fall off. Please check the wiper arm or wiper link bushing.

4. The wiper motor makes abnormal sound.

If the wiper motor itself makes abnormal noise, it is probably the performance of the motor before the end of its life. It is recommended to go to a professional repair shop for a more detailed inspection.

(2) Use warm tips to prevent abnormal sound of the wiper.

The main function of wiper is to clean rainwater. If there are other stains on the glass, you can't use it casually. If there is no rain, there is no need for a wiper. Never dry-wipe. This will not only damage the wiper blade, but also seriously affect the wiper motor. Even if it rains, wait until there is enough water on the glass before using it, otherwise it will appear similar to dry scraping.

When using the wiper, please pay attention to the following questions:

1, check the wiper blade regularly.

When the wiper blade is found to be seriously worn or dirty, it should be replaced or cleaned in time, otherwise it will reduce the working efficiency of the wiper and affect the driver's sight. When cleaning the wiper blade, cotton yarn can be dipped in alcohol cleaner to gently wipe off the dirt on the wiper blade. Scraper can't be cleaned and soaked with gasoline, otherwise it will be deformed and affect the work.

2. When checking the working condition of the wiper, first wet the windshield with water, otherwise it will scratch the glass. At the same time, due to the high friction resistance of the wiper, it may damage the wiper or burn out the motor. After turning on the wiper switch, pay attention to whether the motor has abnormal sound, especially if the wiper motor "buzzes" but does not rotate, indicating that its mechanical transmission part is rusty or stuck. Turn off the wiper switch immediately to prevent the motor from burning out.

3. After turning off the wiper switch in use, the wiper blade should return to the lower side of the windshield and stop. If the stop position is wrong, it should be adjusted. During adjustment, the automatic stop cover can be rotated, the stop position can be shortened by clockwise rotation, and the stop position can be extended by counterclockwise rotation.

4. When using the wiper in winter, if the wiper blade is frozen or stuck by snow, you should immediately turn off the switch and remove the snow and ice before you can continue to use it, otherwise the motor will be burned out due to the excessive resistance of the wiper blade.