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Step 1: Press and hold the lower right button under "Next" in the lower right display for at least 3 seconds.
The screens will stay in the Diagnostic Mode for 12.5 minutes after the last button press for viewing unless "Done"
button is pressed to exit Diagnostic Mode.
Step 2: The display will show the flame sense current in microamps when the burner is operating.
Step 3: Press the lower right "Next" button and the display will show flash and show the number of any Alert codes.
These are not currently used.
NOTICE
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