American Water Heater 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 |
|---|---|---|---|
ProMax / Standard Entry-level residential line sold through wholesale distribution. | 6 yr | 6 yr | 1 yr |
ProMax Plus / Mid-Tier Mid-tier line with improved efficiency. | 9 yr | 9 yr | 1 yr |
ProMax SELECT / Premium Premium residential line with extended coverage. | 12 yr | 12 yr | 1 yr |
How to Register Your American Water Heater Water Heater
Product registration is strongly recommended, even if not strictly required. It ensures American Water Heater 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
- Sediment and scale damage
- Labor after year one
- Units not installed by a licensed professional
How to File a American Water Heater Warranty Claim
- 1
Locate serial and model numbers on the rating label
- 2
Call American Water Heater at 800-456-9805
- 3
A service technician will be dispatched for diagnosis
- 4
Warranty parts are provided at no charge
American Water Heater warranty line: 800-456-9805
Warranty Transferability: No
Warranty is for the original purchaser only and does not transfer.
If you recently bought a home with a American Water Heater 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
American Water Heater Company is an A.O. Smith subsidiary and also manufactures Craftmaster and Envirotemp branded water heaters. Products are distributed through professional wholesale channels.
Related brands with similar warranty terms:
American Water Heater Warranty FAQ
How long is the warranty on a American Water Heater water heater?
American Water Heater 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 American Water Heater water heater warranty transferable?
No. American Water Heater warranties are not transferable. Warranty is for the original purchaser only and does not transfer.
How do I check if my American Water Heater 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 American Water Heater's warranty period for your model. You can also contact American Water Heater directly at 800-456-9805 with your serial number.
What voids a American Water Heater water heater warranty?
Common warranty voiding issues for American Water Heater include: Improper installation; Sediment and scale damage; Labor after year one.
Does American Water Heater offer an extended warranty?
American Water Heater does not currently offer a standard extended warranty program. Contact them at 800-456-9805 for current options.
What do I do if my American Water Heater water heater fails under warranty?
Locate serial and model numbers on the rating label. Then call american water heater at 800-456-9805. Contact American Water Heater at 800-456-9805 for assistance.
More for Your American Water Heater Water Heater
Not sure which American Water Heater model you have?
Check your American Water Heater water heater's age, model info, and estimated warranty status with our free serial number decoder.
Decode Your American Water Heater Serial NumberThis information is provided as a helpful reference only. Warranty terms are set by American Water Heater 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 American Water Heater or A.O. Smith Corporation.