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S V C 8 2 0 ( P ) P o c k e t M a n u a l P a g e
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Maintenance Mode Panel Display
INSTRUCTIONS
The Rheem/Ruud Tankless has a maintenance mode
chart on the remote control. To access the
maintenance mode, turn the unit OFF at remote
control and make sure water flow is OFF. Then hold
down the UP and DOWN arrow keys at the same
time for 5 seconds. You will hear an audible beep and
see the display go to 1E (NOTE: Unit will default to
120° F). By pressing the UP and DOWN arrow keys
on the remote control, you can access a variety of
information about the water heater. To activate the
unit while displaying the maintenance panel: push
the power button once, open a hot water fixture, and
the green LED will illuminate. This will allow you to
access a variety of real time information while the unit
is in operation.
Shortcut: (See Diagram on Page 22) DIP1 - Lift dip
switch #1 to the up position to go immediately
into maintenance mode. This can be done while
the water heater is in operation.
(NOTE: Unit will maintain the set temperature)
While in maintenance mode you want to push the UP
arrow key to select the table you wish to view. The
table is designated by a letter and is always displayed
as the second digit. Then push the DOWN arrow key
to display the number item in the table you selected.
The number is always displayed as the first digit. You
can select as many as 8 readings for each table.
To perform diagnostics in this service manual, press
the UP arrow until you get to table1Y.
Now using your DOWN arrow you can change the
number in front of Y. As you move through the
diagnostic readings, the selected table will flash first
and then the diagnostic reading.
(Maintenance Mode Table on Page 23)
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