The APM402 is a generator-set controller. It is used on generator sets from Discovery Energy and Kohler, including the 100ERES, 100REOZJ, 100REZGD and 100RZG.
Used across brands: Discovery Energy, Kohler
Also fitted to: Discovery Energy APM402 Controller.
| Code | Meaning | Remedy |
|---|---|---|
| DCB1 | Relé de falla común DCB1 | Llene el sistema de enfriamiento antes de encender el calentador de bloque. Ponga en marcha el motor hasta que este se caliente y llene el radiador para purgar el aire del sistema antes de energizar el calentador de bloque. |
| DCB2 | Relé de falla común DCB2 | |
| o | Low engine oil level | |
| o | Low fuel level (diesel models) | |
| o | Low fuel pressure (gas models) |
| Symptom | Remedy |
|---|---|
| Battery acid cleanup | Add 500 g (1 lb.) of bicarbonate of soda to a container with 4 L (1 gal.) of water and mix the neutralizing solution. Pour the neutralizing solution on the spilled battery acid until all evidence of a chemical reaction has ceased. Flush the resulting liquid with water and dry the area. |
| Battery acid on skin | Flush the affected area with large quantities of clean water and seek medical aid if necessary. |
| Battery acid splashes in the eyes | Immediately flush the affected area for 15 minutes with large quantities of clean water. Seek immediate medical aid. |
| Battery short circuits | 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. |
| Battery short circuits. | Disconnect or reconnect generator before servicing the equipment. Jewelry should be removed 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. |
| Servicing the air cleaner | Do not operate the generator set with the air cleaner removed. |
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.