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Step 2: For water heaters using two temperature sensors, pressing the “Select” button again displays the Upper Sensor
temperature reading. “Upper Sensor” will be displayed in the lower right side of the status window of the water heater
display.
Step 3: For water heaters using two temperature sensors, pressing the “Select” button again displays the Lower Sensor
temperature reading. “Lower Sensor” will be displayed in the lower left side of the status window of the water heater
display.
To Display Flame Sense Current of the Pilot Flame Sensor:
The pilot flame sense current is available only when the burners are in operation. Step 1: Make sure the status displays
“Heating” or draw enough hot water to start the burners. Step 2: Enter the “Service Mode” described previously. Step 3:
Press the “Select” button until a number value is displayed with “Flame Current” to the right of the number. The value
displayed is in microamps (µA).
SELECT SET
Status
°F
idle
Operational
Lower Sensor
SELECT SET
Status
Operational
Flame
Curren
t
Heating
µA
SELECT SET
Status
°F
idle
Operational
Upper Senso
r