Changing The Display Units; Fault Conditions - A.O. Smith 197835-001 Instruction Manual

3. Changing the Display Units

The display interface to the heater has the option of selecting between
degrees 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
Settings" 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:

4. Fault 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.
• 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 condition is corrected and, in most cases, power has
been cycled.
example of a fault:
advanced diagnostics Information
When a fault 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
equivalent to that of a licensed tradesmen in the field involved.
5. Access to the Current Fault
When a fault 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 by pressing the Back key, you can always return to the
fault screen through the menu.
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