Display Window; When The Gas Burner Is On; When Hot Water Flows - Noritz NR501-OD Service Manual

Display Window

(Ex.NRC661-DV)
On
(Ex.: error code 11)
When other indication will appear, please refer to troubleshooting(Owner's guide).
(Display Window)

When the gas burner is on.

When the gas burner is on, set temperature is
displayed for one minute.
When unit is initially plugged into power,
set temperature is displayed for approx. three minutes.
When hot water flows.
(When the gas burner is off, and cold water flows.)
After one minute elapses from initial call for hot water, the outside edge of
the three digit display will rotate in a circular pattern.
If there is a problem with the unit, a numerical
error code will flash.
The display window allows you to view the status
of unit or error codes.
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