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#FINDING AGE OF WATER HEATER SERIAL NUMBER#
#FINDING AGE OF WATER HEATER SERIES#

You don’t need a serial number decoder for this. So, if the first four digits read 1235, you can infer that its manufacture date is in the 35 th week of 2012 (between Aug. For example, the Serial Number “0128104380” represents a manufacturing date in the 28 th week of 2001. The second two digits (WW) after the manufacturing year identifier relate to the nth week of manufacture.Hence, “o2” denotes an old 2002 model, while “22” indicates the latest model (2022).

#FINDING AGE OF WATER HEATER SERIES#

The first two digits (YY) on the alphanumeric string or number series represent the appliance’s year of manufacture.

You only need the first four numbers in either Serial information to determine the age of your Whirlpool water heater. In any case, the reading method for these date codes is the same.

A 10-digit number series (without a letter on the element or position).

There should be a single letter that separates the “YYWW” section from the last six digits.

An 11-character alphanumeric string with the following format: YYWW*******.

When buying water heaters from this brand, chances are that you’ll see two types of serial numbers: You can find this information on the manufacturer’s label stuck to the unit body. Using the Serial Number On The Manufacturer’s Labelĭefining a Whirlpool water heater’s age by serial number is fast and easy, as these digits describe the year and week of manufacture. Of course, other tricks are available when the serial number lookup doesn’t yield the expected results. The most conclusive method for determining the appliance’s age is checking its serial number. Although the answer seems complicated, the solution is straightforward. “How old is my Whirlpool water heater?” Many beginner water heater owners ask this question.

Other Water Heater Brandsĭetermining the Age of a Whirlpool Water Heater Maintain and extend the life of a water heater Signs that indicate a Whirlpool water heater replacement Why Knowing the Age of a Water Heater is Important.Other Ways of Determining Whirlpool Water Heater Age Using the Serial Number On The Manufacturer’s Label Determining the Age of a Whirlpool Water Heater.