Cummins/Onan 2100 Series — Circuit Board Removal/Replacement
Repair & overhaul · Circuit boards
For the Cummins/Onan 2100 Series, from the Cummins/Onan service manual.
Applies to: Cummins/Onan DFAB, Cummins/Onan DFAC, Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan DFGB, Cummins/Onan DFGE, Cummins/Onan DFLB, Cummins/Onan DFLC, Cummins/Onan DFLE
Before you start
- Electrostatic discharge will damage circuit boards.
- Accidental starting can cause severe personal injury or death.
Procedure
- Wear grounding wrist strap; attach clip to chassis ground screw.
- Turn off battery charger; remove negative battery cable.
- Remove and replace the circuit board.
- Replacing Base board requires the InPower service tool.
- Use capture file to write previous settings to new board.
- Attach all harness connectors.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Do not repair printed circuit boards; replace them.
Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →, Cummins/Onan DFGB →, Cummins/Onan DFGE →, Cummins/Onan DFLB →, Cummins/Onan DFLC →, Cummins/Onan DFLE →
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.