The PowerZone Pro Sync is a generator-set controller. It is used on generator sets from Generac, including the MDE330, MDE570, MG1000 and MG250.
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 |
|---|---|---|
| (1) Low Load indicator LED. • Indicates genset has operated at less than 30% capacity for more than 15 minutes. | Resolve by increasing electrical load. If unable to operate genset at more than 30% load, use a smaller generator. | |
| (2) Lug Door Open indicator LED. | Indicates lug-box door is open. | Resolve by closing lug-box door. If condition remains unresolved, inspect lug-box door safety switch for proper operation. |
| (3) Emergency Stop indicator LED. | Indicates Emergency Stop switch is active (pushed in). | Resolve by deactivating (pulling out) Emergency Stop switch. |
| (4) Shutdown indicator LED. | Indicates a shutdown alarm is present. | Resolve by resolving shutdown condition. |
| Emergency Stop indicator LED is illuminated. | Emergency Stop switch is active (pushed in). | Deactivate (pull out) Emergency Stop switch. |
| Low Load indicator LED is illuminated. | Genset has operated at less than 30% capacity for more than 15 minutes. | Increase electrical load. If unable to operate genset at more than 30% load, use a smaller generator. |
| Lug Door Open indicator LED is illuminated. | Lug-box door is open. | Close lug-box door. If condition remains unresolved, inspect lug-box door safety switch for proper operation. |
| Shutdown indicator LED is illuminated. | Resolve shutdown condition. |
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.