Navien NPE-150S, Operation Manual

Page: 9 / 20

Operating the Water Heater 9
3.4 Resetting the Water Heater
If an error message appears, you can try resetting the water heater
to resolve the problem. To reset the water heater, press the Reset
button.
If resetting the water heater does not solve the problem, refer to
the Troubleshooting section of this manual or contact Technical
Support at 1-800-519-8794.
3.2.1 Using Commercial Mode
To use water above 140 °F (60 °C) (up to 182 °F (83 °C)), you can use
Commercial Mode.
Ɣ
To enter Commercial Mode: Press the up (+) and down (-) button
simultaneously for 10 seconds. “HIGH” appears on the display.
Ɣ
To exit Commercial Mode: Press the up (+) and down (-) button
simultaneously for 10 seconds. “
L
oW” appears on the display.
Note
Ɣ
To adjust the temperature, press the up (+) button
for 5 seconds to adjust in 10 °F (5 °C) increments.
Ɣ
Commercial Warranty Applies when this mode is
used. Refer to the Warranty for more details.
3.3 Viewing Basic Information
To view information about the water heater, press the Information
button.
Press the + or – buttons to switch between the information types.
Display Description
Flow rate in gallons per minute
(GPM).
Hot water outlet temperature (OUT).
Cold water inlet temperature (IN).
To exit information mode, press the Reset button.