Getting Service
If your boiler requires service, you have several options for getting service:
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Contact Technical Support at 1-800-519-8794 or on the website: www.navien.com.
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For warranty service, always contact Technical Support first.
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Contact the technician or professional who installed your boiler.
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Contact a licensed professional for the affected system (for example, a plumber or electrician).
When you contact Technical Support, please have the following information at hand:
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Model number
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Serial number
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Date purchased
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Installation location and type
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Error code, if any appears on the front panel display.
800.519.8794 www.Navien.com
20 Goodyear lrvine, CA 92618
User’s Information Manual
NHB Condensing Boilers
20032170C
T H E LEA DER IN CON DEN SING TECHNOLOG Y
Version: 2.0 (May 30, 2019)
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