State Water Heaters Ultra Low Nox Series, Installation Instructions And Use & Care Manual

Page: 22 / 36

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Operating the Temperature Control System
Figure 19: Status Codes
VAC
List of status codes are shown
at top of gas control valve/thermostat.
Water Temperature Adjustment
The water temperature setting can be adjusted from 55°F
to 155°F. Turn the Gas Control/Temperature Knob to the
desired setting/temperature.
NOTE: The temperatures indicated are approximates. The
actual temperature of the heated water may vary.
Operating Modes and Settings
• Standard Mode - The controller adjusts the water
heater to maintain the temperature set by the user.
• Vacation Setting - The Vacation Setting (VAC) sets
the controller at 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 controller
temperature setting down to a temperature that
prevents the water in the water heater from freezing
while still conserving energy.
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 Indicates Thermopile Voltage Low
4
Flashes Indicates Overheat Failure
5 Flashes Indicates Sensor Failure
7 Flashes Indicates Electronic Control Failure
8 Flashes See “Status Light Code Troubleshooting Chart.”