The Decision-Maker 1 is a generator-set controller. It is used on generator sets from Kohler, including the 11RMY, 50ROZ and 8.5RMY.
| Symptom | Remedy |
|---|---|
| Accidental starting | Disconnect the battery cables before working on the generator set. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. |
| Air Cleaner Element and Precleaner | Clean or replace air cleaner element and precleaner as needed. |
| Battery | Clean battery terminals, check electrolyte levels, and test battery performance. |
| Battery short circuit | Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Never connect the negative (--) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together. |
| Cooling System | Check for leaks, ensure proper coolant level, and maintain system integrity. |
| Engine Oil Recommendation | Follow recommended engine oil specifications. |
| Exhaust System | Inspect exhaust components for damage or blockages. |
| Low Oil Pressure Shutdown | Check oil level and ensure proper lubrication. |
| Oil Level Check | Ensure the oil level is at the correct mark. |
| Running Sequence | Monitor engine performance according to the sequence of operation. |
| Spark Plugs | Replace spark plugs as necessary. |
| Starting Sequence | Follow the sequence of operation for starting the engine. |
| Storage Procedure | Lubricate system components, drain fuel, and protect exterior and battery during storage. |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.