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Operating the Temperature Control System
LOW'
C
V_Q
PILOT
Figure 19B: Status Codes
List of status codes are shown
at top of gas control valve/thermostat,
Status Light Code
Normal Flashes:
• 0 Flashes Indicates Control Off/Pilot Out.
• 1 Flash Indicates Normal Operation.
• Continuous Light indicates the gas control
valve/thermostat is shutting down.
Diagnostic Flashes: If the water heater is not working look
for the following diagnostic flashes after lighting the pilot.
2 Flashes
4 Flashes
5 Flashes
7 Flashes
8 Flashes
Indicates Thermopile Voltage Low
Indicates Overheat Failure
Indicates Sensor Failure
Indicates Electronic Control Failure
See "Status Light Code Troubleshooting Chart."
Water Temperature Adjustment
The water temperature can be adjusted from 55°F to 155°F.
Turn the Gas Control/Temperature Knob to the desired
setting/temperature.
NOTE: Some models are certified for 180°F outlet
temperatures. See the Data Plate on the front of the water
heater for the maximum outlet temperature.
Operating Modes and Settings
• Standard Mode - The controller adjusts the water
heater to maintain the temperature set by the user.
• Vacation Setting - The controller adjusts the water
temperature to approximately 55°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.
20
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