John Wood Envirosense Power Direct Vent (May 2010 or later) - Manuel (Page 39)

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STATUS ICONS
The Status Icons are displayed on the Desktop screen and convey operational and diagnostic information. The icons are described in the
table below.
Table 12 – STATUS ICONS
Icon Description
Water temperature in the tank has fallen. Shaded area of the animated thermometer icon will rise and fall in response to
water temperature in the storage tank as sensed from the Temperature Probe.
Water temperature in the tank has reached the Operating Set Point. The control system enters the Standby mode.
The control is unable to initiate a heating cycle. This will happen whenever a Fault condition is detected by the control system
or water heating is disabled when the water heating enable/disable (on/off) switch is turned off, or water heating is disable
when an external enable/disable connection is disabled.
The Combustion Blower is being energized.
The Blower Prover pressure switch contacts have closed. The check mark icon is visual confirmation of contact closure.
The Igniter is being energized.
GAS
OFF
O
N
The 24 Volt Gas Control Valve is being energized.
The control system has sensed flame at the Main Burner from the Flame Sensor.
The control system has declared a Fault condition and must be inspected/serviced by a Qualified Service Technician. Fault
message details can be viewed in the Current Fault menu. Heating operation is disabled (control system lock out) until the
condition that caused the Fault is corrected. Water Heating Enable/Disable Switch must be cycled off and on to reset the
control system.
NOTE: Cycling Water Heating Enable/Disable Switch will not reset the control system if the condition that caused the Fault
has not been corrected.
The control system has declared an Alert condition and must be inspected/serviced by a Qualified Service Technician. The
water heater will continue to operate during an Alert condition.