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Navien products are backed by a limited warranty that covers labor, parts and the heat exchanger. For more details, select a product using the menu above, call 1-800-519-8794 for customer service, or start a live chat.
Warranty Service and Return Policy
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This 15 year limited warranty on heat exchangers, 5 year limited warranty on parts, and 1 year limited-labor warranty ("Warranty") covers defects in materials or workmanship when the Navien NPN Water Heater ("Product") is installed by a properly licensed plumber or contractor and operated in strict compliance with the Installation & Operations manual procedures, subject to the terms within this Warranty document. Improper installation or use will void this Warranty. This Warranty runs from date of installation and extends to the original purchaser and subsequent owners, but only while the Product remains at the site of the original installation.
What is Covered?
Subject to the foregoing terms, Navien will repair or replace the covered Product or any part or component that is defective in materials or workmanship for a period of five (5) years in regard to parts and up to fifteen (15) Years in regard to the heat-exchanger for a Standard¹ or Controlled-Recirculation² installation in a Residential* application. All repair parts must be genuine Navien parts. All repairs and replacements must be performed by an individual or servicing company that is properly licensed to do the type of repair.
When the Product is being used in an Uncontrolled-Recirculation3 installation in a Residential* application, then the parts warranty will be reduced to three (3) years and the heat exchanger warranty to five (5) years as indicated in the Warranty Coverage Periods table.
When the Product is being used in an Standard¹ or Controlled-Recirculation² installation in a Combi4 or commercial application, then the parts warranty will remain at five (5) years and the heat exchanger warranty will be reduced to five (5) years as indicated in the Warranty Coverage Periods table.
When the Product is being used in an Uncontrolled-Recirculation3 installation in a Combi 4 or Commercial application, then the parts warranty will be reduced to three (3) years and the heat exchanger warranty to three (3) years as indicated in the Warranty Coverage Periods table.
Navien will pay labor charges for the repair subject to Navien's prior written approval and in accordance with Navien's schedule of approved labor allowances for a period of one (1) year from the date of installation.
During the applicable warranty period, replacement of the Product or components may be authorized by Navien only. Navien does not authorize any person or company to assume for it any obligation or liability in connection with the replacement of the Product or its components. If it is determined that repair or replacement of a part, under warranty, is not possible, the Product will be replaced with a new Product having at least the same BTU capacity as the product at issue. The replacement component or product will be warranted only for the unexpired portion of the applicable warranty period for the original component or Product.
Warranty Coverage Periods
| Product | Labor | Parts | Heat Exchanger | |
|---|---|---|---|---|
Residential* | Standard1 or Controlled Recirculation2 | 1 Year | 5 Years | 15 Years |
Uncontrolled Recirculation3 | 1 Year | 3 Years | 5 Years | |
Commercial or Combi4 | Standard1 or Controlled Recirculation2 | 1 Year | 5 Years | 5 Years |
Standard or Controlled Recirculation3 | 1 Year | 3 Years | 3 Years | |
Residential*
Standard1 or Controlled Recirculation2
Residential*
Standard1 or Controlled Recirculation2
Labor - 1 Year
Parts - 5 Years
Heat Exchanger - 15 Years
Uncontrolled Recirculation3
Uncontrolled Recirculation3
Labor - 1 Year
Parts - 3 Years
Heat Exchanger - 5 Years
Commercial or Combi4
Standard1 or Controlled Recirculation2
Commercial or Combi4
Standard1 or Controlled Recirculation2
Labor - 1 Year
Parts - 5 Years
Heat Exchanger - 5 Years
Standard or Controlled Recirculation3
Standard or Controlled Recirculation3
Labor - 1 Year
Parts - 3 Years
Heat Exchanger - 3 Years
*Applies only to single family, residential locations
1Standard means there is no recirculation being used
2Controlled-Recirculation means recirculation of the water through the water heater is controlled by either the water heater or an external aquastat.
3Uncontrolled-Recirculation External pumps configured to circulate continuously through the water heater are subject to the uncontrolled recirculation warranty terms. An aquastat is the minimum pump control requirement for DHW or storage tank recirculation in order to maintain the full controlled recirculation warranty.
4Combi refers to a combination potable water and space heating application. Water Heaters cannot be use in space heating only applications or this warranty will be voided.
How do i get service?
You must contact the original installer of your Product. Your installer will need to contact Navien to report the issue. If the original installer cannot be identified or you no longer choose to use that service provider, you may choose any service provider who is properly licensed to complete the necessary repair. The installer and/or service provider must comply with Navien's warranty service and return policy procedures as available on Navien's website including contacting Navien's Technical Support Department at (800) 519-8794, option 2, prior to commencing any service.
Proof of the date of installation must be provided to Navien. At Navien's request, the defective Product or part must be returned to Navien. When the Product is installed in new construction, the date of installation shall be established as the date upon which the end-user takes title to the real property. If proof of the installation date is unavailable, then six months after the date of manufacture will be used.
What is not covered?
Navien's Limited Warranty shall be void in the event of an occurrence of any of the following:
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Improper installation, including but not limited to, installation in violation of applicable rules, laws or building codes, inadequate water quality, condensate damage, improper venting, incorrect gas type, water pressure, absence of a drain pan, improper conversion from Natural Gas source to Propane, improper conversion from Propane source to Natural Gas, reinstallation at another location, etc.
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Accident, abuse or misuse including but not limited to installation for non-recommended uses, failure to follow or comply with the User's Operational Manual, etc.
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Improper maintenance including but not limited to, scale buildup, vent blockage, failure to maintain, etc.
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Modification, alteration, addition of non-approved components, or misapplication of the Product in any manner.
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Any damage caused by local adverse conditions including but not limited to water quality, hard water deposits, lime or mineral build-up, operating in corrosive atmospheric elements, alterations in smell or taste of water that have an adverse reaction on the unit, etc.
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Damage or problems caused by gas flow issues, electrical surges, flooding, fire, freezing, abnormal external temperature, force majeure, riot, act of war, or any acts of God.
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Performance problems caused by improper sizing of the boiler, the gas supply line, the venting connection, combustion air openings, electric service voltage, wiring, fusing or any other components, parts or specifications.
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Vibration and noise unless caused by a defect in materials or workmanship. Any other causes other than defects in materials or workmanship.
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Operating the Product at water temperatures outside the factory calibrated temperature limits and/or exceeding the maximum setting of the high limit control.
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Subjecting the heat exchanger to pressures or firing rates greater or lesser than those shown on the rating plate or removal of or alteration to the rating plate.
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Installation at any location outside the United States or Canada.
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Improper conversion from natural gas to liquid propane gas or liquid propane gas to natural gas or attempt to operate with a type of gas not specified for the boiler.
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Accidental or intentional damage.
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Operating the Product when it is not supplied with potable water at all times.
There is no warranty on any Product purchased through the internet or from any installer that obtained the Product from a supplier or distributor not authorized by Navien.
Warranty limitations
EXCEPT AS EXPRESSLY PROVIDED HEREIN, THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND THE DESCRIPTION OF THE WARRANTY HEREIN AND FURTHER NAVIEN SHALL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, PUNITIVE OR OTHER SIMILAR DAMAGES THAT MAY ARISE, INCLUDING LOST PROFITS, DAMAGE TO A PERSON OR PROPERTY, LOSS OF USE, INCONVENIENCE, OR LIABILITY ARISING FROM IMPROPER INSTALLATION, SERVICE OR USE OF THE PRODUCT. ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ARISING UNDER STATE LAW ARE LIMITED IN DURATION TO THE PERIOD OF COVERAGE PROVIDED BY THIS WARRANTY, UNLESS THE PERIOD PROVIDED BY STATE LAW IS LESS.
No one is authorized to make any other warranties on behalf of Navien.
Some states do not allow the exclusion or limitation of incidental or consequential damages, or how long an implied warranty lasts, so the above limitation may not apply to you.
This Limited Warranty gives you specific legal rights and you may also have other rights which vary from state to state.