FINDING AGE OF WATER HEATER SERIAL NUMBER

Our example showed the serial number starting with 1735. The first four digits represent the year code and week of manufacture. Style four is probably the easiest to understand. Using the serial code AF04 (used in the example), we can date your heater to June 2004. Here’s another easy-to-follow chart: Serial Number Starts With So, if your hot water heater has this code, it predates 2008. Smith bought State Industries in 2008, they dropped the factory code letter and then discontinued this serial code altogether. The first letter denotes the factory code. You guessed it they tell you the year of production.

The important ones to focus on are the second letter, telling you the month and the first two numbers. Style three serial codes have two letters at the beginning followed by a series of numbers. To give another example, M is the month of December, while the date numbers 07 represent the year. If the corresponding numbers are 76, that gives you the year it was made. If your serial number begins with the letter H, the month of manufacture was August. The letter represents different months, but to understand which specific month, we need a handy chart.

FINDING AGE OF WATER HEATER SERIAL NUMBERS

Things get a little more complicated with serial numbers starting with a letter code. Likewise, S1318 represents a manufacture date of the 13th year and the 18th week. So, if the serial number starts with 1210, your hot water heater was manufactured in the 12th year and in the 10th week. Style 1Įach of the first four numbers represents the date code. To read the codes, we need to understand the four ways the serial numbers are written. Knowing your State water heater age helps determine whether the warranty is still valid. It can be tricky to look up, but with our help, you can use this article as a decoder. The age of your gas or electric State water heater comes down to the model numbers.Įach model is designated a serial number listing the manufacture date. To the untrained eye, deciphering the date codes on your State water heater is as easy as reading hieroglyphics. When Should I Replace My State Water Heater?.

Finding age of water heater