Navien NCB-24LSWE, Service Manual

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NCB Service Manual 3 Version 1.0
Navien Warranty
Warranty Period
Navien products come with a limited warranty covering. The
warranty covers labour, parts, and the heat exchanger. The
warranty period starts from the date of original installation.
The date of original installation must be advised to Navien,
and if requested, proof of the original installation date must
also be provided to Navien. When the product is installed in
a new installation, the warranty period will start from the
date the end-user takes responsibility for the property.
Product Warranty Period
NCB Series Boiler
(Residential use, single dwelling)
3 years
Warranty Claim Procedure
To obtain warranty repair service, the end user or
homeowner must contact the original installer of the Navien
product. If the original installer is unknown, the end user or
homeowner can contact the Navien Technical Department
at
0844–332-2323 . 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 labour in completing the warranty service is subject to
Navien’s prior written approval and shall be subject to
Navien’s schedule of approved labour 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 authorised 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 flue 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.

Operating the boiler at water temperatures outside the
factory calibrated temperature limits and/or exceeding
the maximum setting of the high limit control.

Operating the boiler when it is not supplied with potable
water at all times.

Subjecting the heat exchanger to pressures or firing rates
greater or lesser than those shown on the rating plate.

Removal or alteration of the rating plate.