Since dishwashers are frequently used in most homes, a dishwater spray arm tends to encounter some problems eventually. Usually, problems are evident each time the dishes are unloaded since, when dishwater spray arms malfunction, dishes are not cleaned thoroughly. There will be grit found on glasses and dishes, and in some cases, they will need to be re-washed the old fashioned way. As durable as most dishwashers are, it is recommended to have some basic working knowledge of your dishwasher’s parts and to perform regular checkups.