Bradford White EFR-1-60T1206EN Installation & Operating Manual page 66

Step 4:
Press the "Temperature Down" button to change to the previous code index, code #9.
Step 5:
Press the "Select" button for code index #9 to view if there are any code numbers.
idle
Operational
Status
SELECT SET
idle
Operational
Status
SELECT SET
66
Error Code Index
Stored Error Code
For Code Index #9