Each washing machine has a fixed location for the rating plate which contains the Model and Serial Number information. When viewed from the front, open the porthole door and it is at the top of the porthole door frame. This serial number is 20 digits long. Please note that Haier does not use the letters I or O. On some washing machine models this is a 9 digit number.
There is an additional serial number labels at the top on the back of the washing machine.