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Page
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
Ver. 1.00
CONFIDENTIAL
12-1. Diagnosis using the temperature controller
and temperature remote controller
< Individual unit >
1. Press the
"HOT"
button and the
"COLD"
button simultaneously for at least 5 seconds to enter
“Diagnostic mode”.
2. Scroll up or down to the needed information (mode #) of the water heater by pressing the
“HOT”
or
“COLD”
buttons (Fig.1 shows mode #6 being selected.)
When selecting information, please refer to the table on p. 61-62 for the proper mode #.
3. Press the
“INFO”
button to select the mode #, and the information to which the mode # correlates
to will display on the controller. (Fig.2)
4. When the
“ON/OFF”
button is pressed or 30 minutes have elapsed without pressing any buttons,
the display will return to normal.
Mode #
Information
Fig. 1
Fig. 2
For example, the figures above show how to arrive at the outlet temperature information.
TEMPERATURE CONTROLLER
and TEMPERATU REREMOTE CONTROLLER
The illustration below shows an example of the controllers. The exact display may differ from examples.
"COLD" Button
"HOT" Button
Press the "HOT" button or the "COLD"
button to set the hot water temperature.
STAND BY LED (Orange)
The indicator is ON to show that
power is ON.
IN USE LED (Green)
The lamp lights during combustion.
"INFO" Button
Each time the button is pressed,
the operation mode is selected
in the sequence of the following.
Inlet water
temperature
Outlet water
temperature
Water
flow
When the stand by LED is ON, the
hot water temperature will be
displayed.
Display for Temperature
"ON/OFF" Button
Press this button to
start or stop operation.
Temperature controller
Temperature remote controller
