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Troubleshooting
Step 4:
Press lower right “Next” button and the digital display will flash and show the number of any Lockout codes.
Step 5:
Press lower right “Next” button and the digital display will show the temperature sensor reading.
Step 6:
Press lower right “Next” button and the digital display will show the manual firing rate adjustment. This function is
not currently used. Any adjustment made has no effect.
Step 7:
End of screens in Service Mode. Press “Done” button on lower left to exit Service Mode back to DHW setpoint in
the User Mode.
NOTICE
The screens will stay in the Service Mode for 12.5 minutes after the last button press for viewing unless
“Done” button is pressed to exit Service Mode.
14
Summary of Contents for EF120T4003N3
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