Noritz WHiC56 Service Manual page 44

Remote Controller
RC-9018M
Displaying Maintenance Monitors
<Display Procedure>
1. Press and hold both the up [ ] and down [ ] setting buttons simultaneously for more than
5 seconds. This can be done regardless of whether the power has been turned on or
the unit is operating.
<Indications>
1. [Unit No.], [Item(Data) No.], [Data] will appear on the display.
2. Different Item(Data) No. can be selected using the up [ ] or down [ ] buttons.
3. With the remote controller in maintenance mode, the hot water set temperature and other
functions cannot be adjusted.
<Returning to Normal Mode>
1. For releasing the indication, press and hold both [ ] and [ ] of the setting button
simultaneously more than 2 seconds, or leave it alone for more than 10 minutes.
<Clearing Error Codes from Memory>
When the power is OFF, press and hold the down [ ] button for more than 5 seconds.
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