Navien NCB700-2S Plus 42K Installation & Operation Manual page 68

Condensing combi boiler
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10.6.5 Viewing Error History
To view the error history, press the Menu button (
select "5. Error History".
A list of 10 recent errors are displayed on the screen, with the
most recent error displayed at the top of the list.
Press the Up button (
between the list of Errors. Press the OK button (
error to view detailed information.
Press the Back button (
menu.
The front panel display flashes in red and the error
Note
icon is displayed (flashing) when a level 1 error
is detected. You can press the OK button (
to enter error display mode. Boiler operation is
maintained during a level 1 error.
A level 1 error is automatically cleared when the
problem is resolved.
You can press the Power button (
level1 error. Then, the error is cleared if the problem
has been resolved.
68
Operating the Boiler
), and then
) or the Down button (
) to switch
) to select an
) to return to the previous screen or
) to clear a
10.6.6 Viewing Other System Information
To view the miscellaneous system information, press the Menu
button (
), and then select "6. EMS Data".
Press the Up button (
between the information items. Press the OK button (
select an item and view the information.
Press the Back button (
menu.
Item
1. CH Operation Time
2. DHW Operation Time
3. Num of CH Operation
4. Num of DHW Operation
5. Num of Preheat
Operation
6. Gas Consumption
)
) or the Down button (
) to switch
) to return to the previous screen or
Description
View monthly central heating
operation logs.
View monthly DHW operation
logs.
View the number of times
the central heating operation
function has been used.
View the number of times the
DHW operation function has
been used.
View the number of times the
preheat operation function has
been used.
View monthly gas consumption.
) to

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