Bradford White EF120T4003NA3 Service Manual page 15

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. The display will flash and show the number of any alert codes.
These are not currently used.
Step 4: Press lower right "Next" button. The display will flash and show the number of any Lockout codes.
Press "Next", the display will show "DHW MAX". This is the maximum allowable temperature that the
Step 5:
unit can get to before a lockout occurs.
NOTICE
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