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Step 4:
Press lower right “Next” button. The display will flash and show the number of any Lockout codes.
Note:
Refer to Service Manual for information on how to clear Lockout codes.
Step 5:
Press lower right “Next” button. The display will show the temperature sensor reading.
Step 6:
Press lower right “Next” button. The display will show the manual firing rate adjustment. This function
is not currently used. Any adjustment made has no effect.
Step 7:
Press “Done” button on lower left to exit Diagnostic Mode back to DHW setpoint in the User Mode.
