- An Old Unit… sometimes finding the year your water heater was manufactured can be difficult. All water heaters have a label that lists important information such as model and serial numbers. It includes the manufacturers name, warranty, wattage, gallon capacity, BTU’s, and more. If your water heater is older, you can find its exact age by looking for the serial number on the manufacturer’s sticker near its top. Below you will find our help in decoding your water heater label.
The Bradford White rating plate is the most difficult to decode. To find the age of a Bradford White tank, you have to understand their coding. The year of manufacture is noted by the first letter of the serial number, the month is the second letter. The decoding is based on the following format:
G = 1990; H = 1991; J = 1992; K = 1993; L= 1994; M= 1995; N= 1996; P= 1997; S= 1998; T= 1999; W= 2000; X= 2001; Y= 2002; Z=2003; A= 2004; B=2005; C=2006; D=2007
A= JAN; B=FEB; C=MAR; D= APR; E=MAY; F= JUNE; G=JULY; H= AUG; J= SEPT; K=OCT; L= NOV; M= DEC.
New Rheem water heaters have an easy to understand rating plate. It includes the manufacture date, as well as information on the size and capacity. On older models, you can determine the age of your unit by decoding the water heater serial number. Some manufacturers, including Rheem, made it easy by incorporating the month and year built into the first 4 digits of the serial number. For instance, the picture below shows that this Rheem water heater was manufactured in December of 1991 (1291). Other manufacturers use different formats, but in a similar fashion.
For A. O. Smith, The month and year are built into the first 4 digits of the serial number. So in this case, it was manufactured in October of 2012. A. O. Smith puts the year first and the month second. It’s a little harder to find but it’s all there.
For American Water Heater, their format puts the year first, then the week the tank was built. In this example, the tank was made in 2007.
- Rusty Water... If your hot water is rusty, your water heater could be rusting on the inside, and it might start leaking soon.
- Not Enough Hot Water…
- Rumbling and Noise…
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