Navien NCB-180, Service Manual

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Navien Warranty
Warranty Period
Navien products come with a limited warranty covering labor,
parts and the heat exchanger. The following warranty periods
begin to run from the date of original installation. The date of
original installation must be provided to Navien, and upon
request, proof of the original installation date must also be
provided to Navien. When the product is installed in a new
construction, the commencement date shall be dated upon
which the end-user takes title to the property.
Warranty Period
Product
Labor
Warranty
Parts
Warranty
Heat
Exchanger
Warranty
NCB Series Boiler
(Single Family
Residential Use)
1 Year 5 Years 10 Years
Warranty Claim Procedures
To obtain warranty repair service, the end user or homeowner
must contact the original installer of your Navien product. If
the original installer cannot be identified, the end user or
homeowner may contact Navien’s Technical Administration
Department at
(800) 519-8794
. Proof of purchase is required
to obtain warranty service.
Warranty Service
At its option, Navien will replace the defective component
(part(s) or heat exchanger), in accordance with the terms of
this Limited Warranty, if it fails in normal use and service during
the Applicable Warranty Period identified above. The
replacement component must be Navien original factory
component. Navien, at its sole discretion, may replace the
product with a new or refurbished product of comparable
quality and design. The replacement component or product
will be warranted only for the unexpired portion of the original
component’s Applicable Warranty Period. Payment for labor in
completing the warranty service is subject to Navien’s prior
written approval and shall be subject to Navien’s schedule of
approved labor allowances.
Warranty Exclusions
Navien’s Limited Warranty shall be void in the event of an
occurrence of any of the following:

Improper installation, failure to install in strict compliance
with the Installation Manual procedures, installed by a non-
licensed installer, and installation in violation of applicable
rules, laws or building codes.

Product purchased through the internet, other e-commerce
channels, or any installer that obtained the Product from a
supplier or distributor not authorized by Navien.

Failure to perform regular maintenance, misuse, operation
at settings other than those recommended or specified,
non-compliance with instructions or guidelines set forth in
the User’s Operation Manual.
 Modification or alteration of the Product in any manner,
including but not limited to, removal of any component or
part, addition of any non-approved components, relocating
or moving the Product from its original installation site, or
any accidental or intentional damage to the Product.

Installation in commercial or multi-unit dwelling
applications or for non-recommended uses.

Any damage caused by local adverse conditions including
but not limited to hard water deposits, lime or mineral build-
up, operating in corrosive atmospheric elements.
 Damage or caused by gas flow issues, electrical surges,
flooding, fire, abnormal external temperature, and any other
cause of damage not directly caused by a manufacturing
defect.

Installer’s failure to fully comply with the Warranty Service
and Return Policy procedures previously provided to
Installer and as is available on Navien’s website. Such
policies include but are not limited to the Installer’s failure to
first contact Navien Technical Support while in front of the
product for purposes of trouble shooting the identified
problem or issue.

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.

Improper conversion from natural gas to LP gas or LP gas to
natural gas or attempt to operate with a type of gas not
specified for the boiler.
 Any damage, malfunction or failure caused by abuse,
negligence, alteration, accident, fire, flood, freezing, wind,
lightning and other acts of God.

Operating, using or storing the boiler in a corrosive or
contaminated atmosphere or environment.