Service Manual

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Troubleshooting
Step 6. Continue pressing the “Temperature Down” button to change to the next code error index and press
“Select” to view the error code number, if any, for that index number. Continue on index #1 and the
most recent in code index #10.
Step 7. 10 seconds after the last button press, the water heater display will revert back to the current error
code display. To exit Service Mode, either wait 30 seconds or press “Temperature Up” and “Select”
buttons together for 3 seconds.
If an error code is displayed (except for #4, low flame sense current), the water heater will be in a “lockout
condition” with the display showing the error code number and “Service Needed” in the status section of the
display window. Error codes 62 (maximum number of retries detected) and 63 (maximum number of ignition
recycles detected) are “soft” lockouts in which the control can be reset in the User Mode by pressing the lower
right button under “Lockout Reset” for 2 seconds shown in the lower right portion of the display. The control will
also go through 3 attempts to relight the burners every hour in the soft lockout condition.
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