Lochinvar Water Heater Warranty Guide
Manufactured by A.O. Smith Corporation · Warranty info last verified: March 2026
Quick Warranty Facts
Tank / H.E. Coverage
6–10 years
Parts Coverage
5 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 |
|---|---|---|---|
Power-Fin Residential Gas Residential condensing storage water heater. | 6 yr | 5 yr | 1 yr |
Crest Commercial Boiler Commercial-grade boiler with 10-year heat exchanger warranty. | 10 yr | 5 yr | 1 yr |
Knight Condensing Boiler High-efficiency condensing boiler. Heat exchanger covered 10 years. | 10 yr | 5 yr | 1 yr |
How to Register Your Lochinvar Water Heater
Product registration is strongly recommended, even if not strictly required. It ensures Lochinvar 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 or operation
- Scale and sediment damage
- Commercial installations using residential-rated equipment
- Labor after year one
How to File a Lochinvar Warranty Claim
- 1
Locate serial and model numbers on the rating label
- 2
Contact Lochinvar at 615-889-8900
- 3
A factory-authorized service representative will assess the unit
- 4
Warranty parts are provided at no charge during coverage period
Lochinvar warranty line: 615-889-8900
Warranty Transferability: No
Warranty is for the original purchaser and installation site only.
If you recently bought a home with a Lochinvar 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
Lochinvar is a premium manufacturer specializing in high-efficiency residential and commercial boilers, water heaters, and pool heaters. Acquired by A.O. Smith Corporation. Products are sold exclusively through professional installing contractors.
Related brands with similar warranty terms:
Lochinvar Warranty FAQ
How long is the warranty on a Lochinvar water heater?
Lochinvar water heater warranties range from 6 to 10 years for tank coverage, depending on the model series. Parts are typically covered for 5 years and labor for 1 year(s).
Is a Lochinvar water heater warranty transferable?
No. Lochinvar warranties are not transferable. Warranty is for the original purchaser and installation site only.
How do I check if my Lochinvar 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 Lochinvar's warranty period for your model. You can also contact Lochinvar directly at 615-889-8900 with your serial number.
What voids a Lochinvar water heater warranty?
Common warranty voiding issues for Lochinvar include: Improper installation or operation; Scale and sediment damage; Commercial installations using residential-rated equipment.
Does Lochinvar offer an extended warranty?
Lochinvar does not currently offer a standard extended warranty program. Contact them at 615-889-8900 for current options.
What do I do if my Lochinvar water heater fails under warranty?
Locate serial and model numbers on the rating label. Then contact lochinvar at 615-889-8900. Contact Lochinvar at 615-889-8900 for assistance.
More for Your Lochinvar Water Heater
Not sure which Lochinvar model you have?
Check your Lochinvar water heater's age, model info, and estimated warranty status with our free serial number decoder.
Decode Your Lochinvar Serial NumberThis information is provided as a helpful reference only. Warranty terms are set by Lochinvar 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 Lochinvar or A.O. Smith Corporation.