Types. The selector switch and the knobs differ from one machine to another. The washing machine can operate only with the help of the timer. Timer is generally known as the start button for the washing machine. The digital version is controlled digitally with the help of an electronic switch. Mechanical type is defined as the one fixed automatically. Digital one is a recent invention and many of the new brands have them these days. But a mechanical version is considered as the best and it helps in controlling the time for washing the clothes manually. The former is operated with the help of electronics, which basically means it's connected to electrical wires. The latter is connected to the wires of the machine and they are operated manually.
The featured should be always kept dry for proper functioning of the machine. Since it is electronically connected, spraying of water and other greasy elements or soapy water results in the damage of the timer. Hence after the washing process, it should be kept clean and dry. Installation of a new one can be made with the help of an experienced service person. It helps in setting certain cycles in the movement of the washing machine and the knobs should be used with proper care.