Cummins/Onan PCC Control 3100 Series — Circuit Board Removal/Replacement
Repair & overhaul · PCC circuit boards
For the Cummins/Onan PCC Control 3100 Series, from the Cummins/Onan service manual.
Applies to: Cummins/Onan DFAA, Cummins/Onan DFAB, Cummins/Onan DFAC, Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan DFE
Before you start
- Electrostatic discharge will damage circuit boards.
- Accidental starting of the generator set while working on it can cause severe personal injury or death.
Procedure
- Wear a grounding wrist strap; attach the clip to a non-painted surface of the control box.
- Turn off or remove AC power from the battery charger.
- Remove the negative (-) battery cable from the set starting battery.
- Remove the circuit board from inside the control panel or accessory box.
- Replace the board and reconnect connectors.
- Recalibrate the control panel functions per Table 5-1 for the replaced board.
Tools required
- Grounding wrist strap Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →, Cummins/Onan DFE →
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.