Cummins/Onan — Check the fault log
Testing & diagnosis · PowerCommand control
From a Cummins/Onan operator's manual covering: C20 N6, C22 N6, C25 N6, C30 N6, C30 N6H, C36 N6, C36 N6H, C40 N6, C40 N6H, C45 N6H, C50 N6H, C60 N6H. Check it applies to your exact model before use.
Applies to: Cummins/Onan C20 N6, Cummins/Onan C22 N6, Cummins/Onan C25 N6, Cummins/Onan C30 N6, Cummins/Onan C36 N6, Cummins/Onan C40 N6, Cummins/Onan C45 N6H, Cummins/Onan C50 N6H, Cummins/Onan C60 N6H
Procedure
- From any Information Menu, hold down the up and down arrows simultaneously for two seconds to access the Service Menu.
- Select Fault History.
- Active faults are displayed first, followed by Fault History screens newest to oldest.
Full service-parts list: Cummins/Onan C20 N6 →, Cummins/Onan C22 N6 →, Cummins/Onan C25 N6 →, Cummins/Onan C30 N6 →, Cummins/Onan C36 N6 →, Cummins/Onan C40 N6 →, Cummins/Onan C45 N6H →, Cummins/Onan C50 N6H →, Cummins/Onan C60 N6H →
Source: Cummins/Onan operator's 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.