Whirlpool Water Heater Age Checker
Decode your Whirlpool serial number to find the manufacturing date, age, and full specs. Free and instant - no account needed.
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Finding Your Whirlpool Serial Number
Check these four spots on your Whirlpool water heater
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try removing access panels or checking behind the temperature dial.
Whirlpool Serial Number Examples
Don't worry if yours looks different - Whirlpool has multiple formats and our system can decode most variations.
About Whirlpool Water Heaters
Whirlpool water heaters leverage the trusted name recognition and engineering resources of Whirlpool Corporation, a Fortune 500 company with over a century of appliance manufacturing experience. While Whirlpool is best known for kitchen and laundry products, their water heater division produces reliable residential units that combine thoughtful design with practical features. The brand focuses on delivering dependable performance at competitive price points, making Whirlpool water heaters popular choices for both new construction and replacement installations. Their products are widely available through home improvement retailers, independent distributors, and authorized dealers nationwide.
Whirlpool manufactures both gas and electric water heater models ranging from compact 30-gallon units ideal for apartments to 80-gallon high-capacity systems suitable for large families. Their gas models feature self-diagnostic systems with LED status indicators that simplify troubleshooting, while electronic ignition eliminates standing pilot lights to improve energy efficiency. Electric resistance models incorporate quality heating elements and thermostats designed for consistent temperature delivery and long service life. Select models qualify for ENERGY STAR certification through enhanced insulation packages and efficient burner designs. The 6th Sense technology available on premium models provides intelligent temperature management and usage monitoring.
Homeowners appreciate Whirlpool's straightforward warranty terms, which typically include 6-year tank and parts coverage on standard residential models, with extended protection available through optional plans. Installation and service support is available through Whirlpool's network of authorized service providers, and replacement parts can be sourced through appliance parts suppliers across the country. The company maintains customer support resources including online manuals, installation guides, and warranty registration portals. Whirlpool water heater serial numbers use a date-based encoding system that incorporates year and week of manufacture, allowing owners and technicians to accurately determine unit age for maintenance planning.
Where to find the serial
Whirlpool water heaters carry the rating plate on the upper side of the tank, often near the temperature/pressure relief valve. Serials are printed in a 10-12 character alphanumeric string and labeled SERIAL. These units were sold heavily at Lowe's between 2002 and 2017, so the label sometimes has a Lowe's date stamp too.
What the serial actually looks like
Why the age is worth knowing
Whirlpool stopped selling water heaters at Lowe's in 2017, but units installed during that decade are now hitting the end of their typical 8 to 12 year service life. Many had the early FVIR thermal switch trip problem that requires a $30 service kit. If yours has the original blue thermal switch on the bottom, that's a known issue.
Quick answers for this brand
Are Whirlpool water heaters still made?
Whirlpool exited the residential water heater business in 2017 after Lowe's switched its house brand to A.O. Smith. New units sold under the Whirlpool name today are limited to specialty markets, but parts and warranty service for the old Lowe's-era tanks are still handled through American Water Heater Company.
What's the Whirlpool FVIR thermal switch problem?
Early FVIR Whirlpool tanks (2003 through about 2009) had a thermal switch on the burner assembly that would trip due to lint accumulation, shutting off the pilot. A free service kit was offered for years through Whirlpool's website. If your pilot keeps going out and the unit is from that era, replace the switch first.
Who actually manufactured my Whirlpool water heater?
American Water Heater Company in Johnson City, Tennessee built the vast majority of Whirlpool-branded units. After the GSW and then A.O. Smith acquisitions, the same plant continues to make tanks for multiple house brands. The serial format gives it away because it matches the standard YYWW used across the AWH family.
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