Bradford White EF120T Installation & Operation Manual With Troubleshooting Manual page 53

Accessing Diagnostic Mode on the Water Heater Display
The display has a "Diagnostic Mode" for accessing information in aiding servicing of the water heater. This
procedure is for service and installation personnel only. To enter the Diagnostic Mode, follow the steps
illustrated below:
The following procedure is for service and installation personnel ONLY. Resetting lockout conditions
without correcting the malfunction can result in a hazardous condition.
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. The display will flash and show the number of any alert codes.
These are not currently used.
(FOR SERVICE PERSONNEL ONLY)
WARNING
NOTICE
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