Getting Service
If your water heater requires service:
●
All repairs require pre-authorization by Technical Support.
●
Request for your installer or any licensed professional to contact Technical Support at
1-800-519-8794 Option 2 once at the installation site.
●
A short list of independent service providers in your area can be found on the website:
www.navieninc.com/installers.
●
Contact a licensed professional for the affected system (for example, a plumber, gas fitter,
or electrician).
When you contact Technical Support, please have the following information at hand:
●
Model number
●
Serial number
●
Date purchased
●
Installation location and type
●
Error code, if any appears on the front panel display
800.519.8794 www.navieninc.com
20 Goodyear lrvine, CA 92618
User’s Information Manual
NHW700 Non-Condensing Water Heaters
TANKLESS WATER HEATERS · BOILERS
Version: 1.0 (August, 2023)