Operating the Temperature Control System
Figure 24: Status Codes |
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| Status |
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| Light |
STATUS |
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ON |
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OFF | C |
| RY |
B |
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| VE | |
A |
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| HOT |
HOT |
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• |
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LOW | • |
| VAC |
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Water Temperature Adjustment
The water temperature setting can be adjusted from 70°F to 160°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.
•Vacation Setting - The Vacation Setting (VAC) sets the controller at approximately 70°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
Table 6
LED FLASH SEQUENCE | CONTROL STATUS |
Short flash once every four second | IDLE (No call for heat, no fault conditions) |
“Heartbeat”, alternates bright/dim | Call for Heat (No fault conditions) |
One Flash, three second pause | Low Flame Signal (control continues to operate) |
Two Flash, three second pause | End Switch Failed Closed |
Three Flash, three second pause | End Switch Failed Open or TCO Limit Lockout |
Four Flash, three second pause | ECO Limit Lockout |
Five Flash, three second pause | Flame Out of Sequence |
Soft Lockout - Retry Limit - Failed TFI | |
Soft Lockout - Recycle Limit - Flame Lost - END Switch Fails | |
Soft Lockout - Recycle Limit - Flame Lost | |
Soft Lockout - Flame out of Sequence Sensed | |
Seven Flash, three second pause | Flammable Vapor Sensor (FVS) Lockout |
Flammable Vapor Sensor (FVS) Fault Detected | |
Temperature Sensor Fault Detected | |
Electronic Fault Detected | |
Gas Control Valve/Thermostat Fault Detected |
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