刮水器不擺動或僅一個擺動以及有時不擺回原位

The wiper does not swing or only one wobble and sometimes does not return to its original position

各是什麼原因

What are the reasons？

（ 1 ）刮水器不擺動

（1） the wiper does not swing

刮水電動機損壞；刮水開關不通；傳動機構髮卡或鬆脫。

Water scraping motor damage； scraping switch can not be turned on； transmission mechanism card or loose。

（2）刮水器僅一個擺動

（2） there is only one swing of the wiper

刮水電動機的電刷接觸不良；刮水開關有的擋位不通；連線導線有斷路或接頭鬆脫，

The brush contact of the wiper motor is not good； some of the wiper switches are not in position； the connecting wire has a broken circuit or a loose joint。

（3）刮水器不擺回原位

（3） the wiper is not put back in place

刮水電動機軸端開關損壞；刮水開關接觸不良；連線導線有斷路或接頭鬆脫；電動機自停位置不當；刮水臂安裝位置不當。

The shaft end switch of the scraper motor is damaged； the scraping switch is not in good contact； the connecting wire has a broken circuit or the joint is loose； the motor self-stop position is improper； the scraping arm is installed improperly。