Reliance Water Heater Warranty Guide
Manufactured by A.O. Smith Corporation · Warranty info last verified: March 2026
Quick Warranty Facts
Tank / H.E. Coverage
6–12 years
Parts Coverage
12 years max
Labor Coverage
1 year
Transferable
No
Extended Warranty
N/A
Registration Required
Recommended
Warranty by Product Line
Coverage periods vary by model series. Check your model against the table below.
| Product Line | Tank / H.E. | Parts | Labor |
|---|---|---|---|
Standard Tank Entry-level residential line. Available at some retail and wholesale locations. | 6 yr | 6 yr | 1 yr |
Mid-Grade Tank Mid-tier residential models. | 9 yr | 9 yr | 1 yr |
Premium Tank Premium models with extended coverage. | 12 yr | 12 yr | 1 yr |
How to Register Your Reliance Water Heater
Product registration is strongly recommended, even if not strictly required. It ensures Reliance has your information on file for warranty service and safety notifications.
You will need:
- Serial number (from the rating label)
- Model number
- Installation date
- Installer's name and contact info
- Your name and address
What's Covered
- Defects in materials and workmanship
- Tank leaks from manufacturing defects (during tank warranty period)
- Internal component failures under normal use
- Heat exchanger failure (for tankless units)
- Manufacturer's defects discovered during warranty period
What's NOT Covered
- Improper installation
- Scale and sediment buildup
- Labor after year one
- Commercial use of residential units
How to File a Reliance Warranty Claim
- 1
Locate serial and model numbers on the unit's rating label
- 2
Call Reliance customer service at 800-937-1479
- 3
Work with an authorized service provider for diagnosis and repair
- 4
Warranty parts provided at no cost during coverage period
Reliance warranty line: 800-937-1479
Warranty Transferability: No
Warranty is for the original purchaser at the original installation address only.
If you recently bought a home with a Reliance water heater, the warranty likely did not transfer to you. Check the age of the unit with our free tool and consider a home warranty plan if the unit is aging.
Additional Notes
Reliance Water Heaters are manufactured by A.O. Smith Corporation. Products are sold through retail and professional channels. Warranty support follows A.O. Smith standards.
Related brands with similar warranty terms:
Reliance Warranty FAQ
How long is the warranty on a Reliance water heater?
Reliance water heater warranties range from 6 to 12 years for tank coverage, depending on the model series. Parts are typically covered for 12 years and labor for 1 year(s).
Is a Reliance water heater warranty transferable?
No. Reliance warranties are not transferable. Warranty is for the original purchaser at the original installation address only.
How do I check if my Reliance water heater is still under warranty?
Use our free serial number decoder at WaterHeaterChecker.com to find your manufacture date, then compare the age to Reliance's warranty period for your model. You can also contact Reliance directly at 800-937-1479 with your serial number.
What voids a Reliance water heater warranty?
Common warranty voiding issues for Reliance include: Improper installation; Scale and sediment buildup; Labor after year one.
Does Reliance offer an extended warranty?
Reliance does not currently offer a standard extended warranty program. Contact them at 800-937-1479 for current options.
What do I do if my Reliance water heater fails under warranty?
Locate serial and model numbers on the unit's rating label. Then call reliance customer service at 800-937-1479. Contact Reliance at 800-937-1479 for assistance.
More for Your Reliance Water Heater
Not sure which Reliance model you have?
Check your Reliance water heater's age, model info, and estimated warranty status with our free serial number decoder.
Decode Your Reliance Serial NumberThis information is provided as a helpful reference only. Warranty terms are set by Reliance and may change at any time. Always refer to the warranty certificate that came with your water heater for the definitive terms of your coverage. WaterHeaterChecker.com is not affiliated with Reliance or A.O. Smith Corporation.