It is important to know the age of your A.O.
Smith serial number is 9808****** then the water heater was constructed in 1998 in the 8th week of the year. – If your heater was built after 2008, the first two numbers will represent the year the water heater was built and the next two numbers represent the week.Įxample: If the A.O.
– If your heater was built before 2008, the first two numbers will represent the year the water heater was built and the next two numbers represent the month. See below for the correct calculations for each time period. Ignore any letter that may start the serial number. When looking at the serial number for your AO Smith water heater, the first four numbers will hold the information with the year and week the water heater was manufactured. Each serial number will consist of 10 numbers and letters, but you will only need to focus on the first four numbers in order to determine the AO Smith water heater age. However, the location of these numbers will be different for water heaters manufactured before 2008 and after 2008. If your water heater is an AO Smith Water Heater, then you can use this information below to determine your AO Smith Water Heater Age.įor all models of AO Smith Water Heaters, the year and week of construction will be listed within the the serial number. Corrosion: If your water heater is beginning to corrode, then this is means your water heater is significantly old and it is time for a replacement.An increase in heating bills may be a good indication that your water heater is getting old and it’s time for a replacement.
When owning a water heater, it is important to know your water heater’s age in order to decide whether it is time to service or replace your water heater.