Water ingress into the motor of the wiper assembly is one of the most frequent faults of the wiper motor, and generally, water ingress into the motor will directly cause the wiper motor to fail. The main reason is that the sealing ring fails or the design of the sealing groove and the sealing ring is unreasonable.

Common causes of failures of the wiper assembly and countermeasures
We know that the wiper assembly is a complete set of products such as wiper blades, wiper arms and wiper electrical appliances. Relevant data shows that the main failure of the wiper assembly is the wiper motor, which is mainly divided into five types. They are water ingress into the motor, rust on the gear shaft, overload burning, gear picking and deformation of the brush holder. Today, let's talk about the countermeasures to deal with wiper motor failures.

Water ingress into the motor of the wiper assembly is one of the most frequent faults of the wiper motor, and generally, water ingress into the motor will directly cause the wiper motor to fail. The main reason is that the sealing ring fails or the design of the sealing groove and the sealing ring is unreasonable. For this fault, the wire diameter of the rubber o-ring can be appropriately increased or plastic with high sealing performance can be used as the material of the sealing gasket.

There are generally two reasons for overload burning. One is that the wiper assembly is overloaded and causes the wiper motor spindle to overheat and burn. The other is that the wiper motor is damaged by water and rust, causing the spindle to burn. For the first fault, wiper motor manufacturers generally choose to add motor overload protection measures or perform heat-resistant treatment on the spindle. The second fault is generally caused by the spindle material not being rust-resistant. It can be appropriately replaced with rust-resistant and waterproof materials to manufacture the wiper motor spindle of the wiper assembly.