The Power Zone–DLA (If Equipped) is a generator-set controller. It is used on generator sets from Generac, including the MLT6.
| Code | Meaning | Remedy |
|---|---|---|
| Fail to Start | Fail to Start — engine does not start and run within three starting cycles; LCD screen displays the "Fail to Start" alarm | The starting sequence can be repeated after the starter cools for at least two minutes. Pressing the Stop (O) button will clear the alarm and reset the controller. |
| Symptom | Cause | Remedy |
|---|---|---|
| High coolant temperature shutdown | Low coolant level | Allow engine to cool, then check coolant level in radiator. Add coolant if needed |
| Low oil pressure shutdown | Low oil level | Check oil level. Add oil if necessary |
| Mast lights off, checking inside the control box | Loose lighting connections | Inspect the connections inside the control box. |
| Mast lights off, checking outside the control box | Light fixture is too hot | Allow light to cool 10–15 minutes before restarting. |
| One or more lights do not turn on | Light breaker tripped | Inspect light breakers |
| The lights are flashing | Dusk-to-dawn sensor adjustment needed | Adjust the dusk-to-dawn sensor according to Dusk to Dawn Sensor |
| Unit cranks but does not start | Low fuel level | Check fuel level in tank. Verify fuel pump operation. |
| Unit cranks, but will not start | Low fuel level | Verify fuel level in tank |
| Unit stalls when export power is used | Load exceeds unit rating | Turn outlet breaker ON and load sense switch OFF, confirm generator output is 60 Hz ± 2 Hz. Reapply load |
| Unit starts, but stumbles and dies | Low ambient temperature | Verify if ambient temperature is within unit limits |
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.