What Causes Incorrect Wiper Blade Positioning?
3 Answers
Incorrect wiper blade positioning is caused by damage to the wiper motor reset circuit. Here are some precautions for using wiper blades: 1. Maintain cleanliness: When there are streak marks on the glass surface, the wiper blade may be dirty. You can sprinkle alcohol on a towel and wipe the surface of the wiper blade. Cleaning once a month can improve the wiper blade's performance. 2. Check the rubber: If the wiper blade makes unusual noises while operating, the rubber may be aging or cracked. If the wear is not severe, you can use sandpaper to smooth out rough spots on the surface. 3. Avoid sunlight: Park the car in a shaded area, such as a garage, where it is not exposed to direct sunlight. Summer is particularly harsh on cars. Wiper blades are rubber products, and exposure to sunlight will only accelerate aging. 4. Refill fluid: Avoid simply adding water to the windshield washer fluid reservoir, as this is not conducive to the long-term maintenance of the windshield and wiper blades. To ensure the longevity of the components, always use proper windshield washer fluid. Refill the washer fluid in a timely manner to be prepared for unexpected needs.
There are usually several reasons for incorrect wiper positioning. Having repaired many cars, the most common issues are loose wiper arm installation where the blade deviates from its position after screws loosen; or linkage mechanism jamming, such as sand and mud entering during rainy days restricting movement; motor failure causing uneven rotation and positional deviation; or dirty sensors in automatic wiper models sending incorrect signals. During inspection, gently push the wiper blade to check for looseness and listen for abnormal noises from the motor. Early intervention can prevent the risk of blurred vision while driving in the rain. It is recommended to check the wiper arm fixation every six months and keep them clean.
I've been driving for over a decade and have encountered misaligned wiper blades quite often. Usually it happens when they weren't properly aligned during installation and get knocked out of position easily, or when winter frost freezes the blades forcing them off track. Worn-out motors with unstable rotation can also cause misalignment. Simple check: After parking, try manually resetting the wipers. If that doesn't work, inspect whether the blades are worn or deformed and need replacement. Developing a habit of pre-rainy season maintenance can prevent last-minute issues affecting your trip.
