The PowerZone Pro Sync is a generator-set controller. It is used on generator sets from Generac, including the MD 500, MDE330, MDE570 and MG1000.
Also fitted to: Generac MG450 | 21.9L | 450 kW, Generac MG625 | 33.9L | 625 kW, Generac SG175 | 14.2L | 175 kW, Generac SG230 | 14.2L | 230 kW, Generac SG300 | 14.2L | 300 kW, Generac SG500 | 25.8L | 500 kW, Generac SG625 | 33.9L | 625 kW.
| Symptom | Cause | Remedy |
|---|---|---|
| High coolant temperature shutdown | Low coolant level | Add coolant if necessary. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature (on controller). Immediately stop engine if coolant temperature is 210 °F (99 °C) or higher. |
| Low coolant level shutdown | Low coolant level | Allow engine to cool, then check coolant level in radiator. Add coolant if necessary. |
| Low fuel level shutdown | Low fuel level | Check fuel level on controller. |
| Low oil pressure shutdown | Low oil level | Check oil level on dipstick. Add oil if necessary. |
| Overcrank shutdown | Fuel level low | Check fuel level in tank.; Check fuel pump operation.; Check air filter for blockage.; See the OEM engine manual for additional information. |
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.