Cummins/Onan — Test a Program
Operation · Exerciser/change-over clock
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Press (Menu) once.
- Press (-)/(+) to make PROG flash; press (OK).
- Press (-)/(+) to make TEST flash; press (OK).
- Press (-)/(+) to make prog or SERIAL flash.
- Press (OK) continuously to reach the program to test.
- Once the program is tested, press (OK); the LCD displays END.
- Press (OK) to end testing.
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.