18
Operating the Temperature Control System

Water Temperature Adjustment

The water temperature can be adjusted from 110°F to
150°F. Turn the Gas Control/Temperature Knob to the
desired setting/temperature.

Operating Modes and Settings

• Standard Mode - The controller adjusts the water
heater to maintain the temperature set by the user.
• Energy Smart Mode - The controller adjusts the water
temperature to the lowest temperature required to
meet the household demands. This mode minimizes
operating costs. The controller will not adjust the
temperature higher than the user’s selected set point or
lower than 115°F.
• Vacation Setting - The controller adjusts the water
temperature to approximately 80°F. This setting is
recommended when the water heater is not in use for
a long period of time. This effectively turns the water
heater down to a setting that prevents the water from
freezing.

Diagnostic Status Light Code

No status light indicates a control off or the pilot is out.
Standard Flashes:
1 Flashes Indicates Normal Operation
2 Flashes Indicates Thermopile Voltage Low
3 Flashes Indicates Valve or Sensor Failure
4 Flashes Indicates Overheat Failure
5 Flashes Indicates Lower Sensor Failure
6 Flashes Indicates Upper Sensor Failure
7 Flashes Indicates Electronic Control Failure
8 Flashes Indicates Valve Failure
Continuous Solid Flash indicates system shutdown
NOTE: If the pilot lights, but will only stay lit with the knob
depressed in the pilot position, look for the following status
light codes.
6 Second Solid Light followed by:
4 Flashes The unit will not relight because it detects an
overheat failure.
7 Flashes The unit will not relight because it detects an
electronic control failure.
8 Flashes The unit will not relight because it detects a
valve failure.
6 Second Solid Light with combinations of:
4 + 7 Flashes* The unit will not relight because it
detects an overheat failure and an
electronic control failure.
4 + 8 Flashes* The unit will not relight because it
detects an overheat failure and a valve
failure.
7 + 8 Flashes* The unit will not relight because it
detects an electronic control failure and
a valve failure.
4 + 7 + 8 Flashes* The unit will not relight because
it detects an overheat failure, an
electronic control failure and a valve
failure.
* Flashes are displayed at 1 second apart and a 3 second
pause between combinations.
Figure 19B
Temperature Control System
STATUS LIGHT CODE
Flashes are displayed 1 second apart at 3 second intervals
STATUS LIGHT CODE
Flashes are displayed 1 second apart at 3 second intervals
120°
Mark
120°
Mark
150°
Mark
Index
Mark