4. Changing the Display Units
The display interface to the heater has the option of selecting between de- grees Fahrenheit and degrees Celsius for temperature displays. This can be found in the “Display Settings” menu. Also in this menu, you may adjust how the backlight operates and the contrast of the LCD screen.
ACTION:
From the Main Menu, press the Down button to highlight "Display Set- tings" then press Select.
DISPLAY:
ACTION:
Use the UP and DOWN buttons to highlight the desired setting. Then press Change. Again, use the UP and DOWN buttons to scroll through the options for that setting.
DISPLAY:
ACTION:
Press Update to accept the change or Cancel to reject it.
DISPLAY:
5. Fault and Warning Conditions
This water heater is equipped with electronic controls that have the ability to monitor almost all aspects of the water heater operation. In the case that there is an undesirable or unsafe condition that occurs, the water heater
controls will detect this condition and determine the appropriate action. Part
of this is displaying the information on the LCD in plain text that accurately describes the condition and diagnostics information that can be used to
correct the issue.
There are two types of conditions that can occur during operation. These are Warnings and Faults:
•Warnings: This is a
NOTE: When these conditions occur, continued heating cycles will continue and the heater will attempt to regulate the water in the tank to the Operating Set Point.
Example of a Warning:
•Faults: This is a safety related condition that has been detected by the heater.
NOTE: When these conditions occur, the water heater will not continue any further heating cycles and the water will no longer be heated until the condi- tion is corrected and, in most cases, power has been cycled.
Example of a Fault:
Advanced Diagnostics Information
When a fault or warning has been declared, advanced information can be found in the control. By pressing the Advanced button, detailed information can be found regarding diagnosing and resolving the problem.
WARNING: Usage of the Advanced information requires ability equiva- lent to that of a licensed tradesmen in the field involved.
6. Access to the Current Fault or Warning
When a fault or warning has been detected by the control, it will automatically be displayed on the screen and the back light will blink. If you choose to leave the current fault or warning by pressing the Back key, you can always return to the fault screen through the menu.
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