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Kohler — Controller Replacement

Installation · ADC 2100 Controller

From a Kohler service manual covering: 10E, 10EG, 10EOR, 10EORD, 10EORZ, 10EORZD, 10EOZ, 10ERG, 10REOD, 10REOZD, 11.5EFOZD, 11EFG…. Check it applies to your exact model before use.

Applies to: Kohler 10EORZ, Kohler 10EOZ, Kohler 10ERG, Kohler 10REOZD, Kohler 11.5EFOZD

Before you start

  • Disconnect the battery cables before working on the generator set; remove the negative lead first and reconnect it last.

Procedure

  1. Record generator set information required for configuration: model, market, voltage, frequency, phases, battery voltage.
  2. Place the generator set master switch in the OFF position.
  3. Disconnect power to the battery charger, if equipped.
  4. Disconnect the engine starting battery(ies), negative lead first.
  5. Open the junction box; disconnect the controller at P1, J15, and J16.
  6. Models ECD/EFCD, EGD/EFGD, EGZD only: disconnect the CO sensor harness at the 4-pin connector.
  7. Remove four controller mounting screws and remove the old controller.
  8. ECD/EFCD, EGD/EFGD, EGZD only: install CO sensor module assembly GM46362 on the back of the new controller GM47982.
  9. Install the new controller and secure with the mounting screws.
  10. Reconnect the P1, J15, and J16 connectors; connect the CO sensor harness on applicable models.
  11. Models 10/13/15EG, 10/13/15ERG, 15/30RES, 15/30RYG with S/N before 2053692: cut a 1-in. section of the gray/orange lead entering pin 9 at the ECM connector.
  12. Check that the generator set master switch is in the OFF position.
  13. Reconnect the engine starting battery, negative lead last.
  14. Reconnect power to the battery charger, if equipped.
  15. Check the controller application software version and load the latest application code if necessary.

Tools required

  • multimeter Amazon
  • personal computer with Program Loader Software Amazon

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Full service-parts list: Kohler 10EORZ →, Kohler 10EOZ →, Kohler 10ERG →, Kohler 10REOZD →

Source: Kohler 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.

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