Nowadays each person is busy in their work and earning good enough for their livelihood. Spending more time on earning. So people are not having enough time for doing their daily work like washing clothes. In this case, nowadays Washing machines are very useful for modern Life, so every household has become necessary to buy a washing machine. No house is full until it has a washing machine, having a washing machine is not a big deal but maintaining it properly is a big deal, and extracting maximum efficiency from the machine is a wise job for humans, so maintaining.