Reliance Water Heater Age

Decode your Reliance serial number to find the manufacturing date, age, and full specs. Free and instant — no account needed.

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Reliance Water Heater

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Finding Your Reliance Serial Number

Check these four spots on your Reliance water heater

Reliance water heater serial number locations

Common Locations

1
Side panel
near the bottom
2
Front panel
access / service door
3
Behind covers
removable access panels
4
Jacket label
upper side or top of tank

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.

Reliance Serial Number Examples

Reliance
L92441351AJ03123456
Letter+year or letter+letter+year or year+week+letter

Don't worry if yours looks different — Reliance has multiple formats and our system can decode most variations.

About Reliance Water Heaters

Reliance water heaters have served American homeowners for over six decades, establishing a presence in the value-oriented segment of the residential water heating market. The brand operates under the A.O. Smith Corporation umbrella while maintaining its distinct identity and product positioning. Reliance focuses on delivering essential water heating performance with dependable construction at accessible price points, making their products popular choices for rental properties, budget-conscious homeowners, and straightforward replacement scenarios. The brand is distributed primarily through home improvement retailers and select independent dealers, providing convenient availability for consumers and contractors alike.

Reliance manufactures traditional gas and electric water heaters in standard residential capacities from 30 to 50 gallons, covering the needs of most typical households. Their gas models feature reliable pilot systems or electronic ignition depending on the specific series, along with industry-standard safety controls and temperature regulation. Electric units incorporate quality heating elements and thermostats designed for consistent operation. The tanks feature glass lining with protective anode rods to resist corrosion and extend service life. While Reliance water heaters emphasize fundamental functionality rather than advanced features, they incorporate the essential components needed for reliable hot water delivery and meet applicable energy efficiency regulations.

Reliance water heaters come with warranty coverage appropriate to their market positioning, typically offering 6-year protection on tanks and components for residential installations. Service support is available through retail channels where the products are sold, as well as independent plumbing contractors familiar with standard water heater service procedures. Replacement parts can be sourced through appliance parts suppliers and in some cases directly through retailers. Installation requirements follow industry standards, and basic troubleshooting guidance is provided in owner documentation. Reliance serial numbers use consistent formatting that incorporates manufacturing date information, helping service professionals determine unit age when assessing whether repair or replacement represents the most economical choice for customers.

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