Generac RD030 troubleshooting: 27 fault codes and symptom-cause-remedy entries from the manufacturer's own service documentation.
Generac RD030 — full specs, parts & maintenance.
| Symptom | Cause | Remedy |
|---|---|---|
| Unit consumes large amounts of oil. Engine over filled with oil. | Adjust oil to correct level. | |
| Unit will not start in AUTO with utility loss. NOT ACTIVATED | Refer to activation section in Owner’s Manual. | |
| Unit running in AUTO but no power in house. NONE | Check MLCB. Contact servicing dealer if MLCB is in the ON position. | |
| Unit will not start in AUTO with utility loss. HIGH TEMPERATURE | Check ventilation around the intake, exhaust and rear of generator. Contact serving dealer if no obstruction is found. | |
| Unit shuts down during operation. OVERLOAD | Clear alarm and remove household loads from the generator. Put back in AUTO and restart. | |
| Unit was running and shuts down, attempts to restart. RPM SENSE LOSS | Clear alarm and remove household loads from the generator. Put back in AUTO and restart. If problem returns, contact servicing dealer to investigate possible fuel issue. | |
| Unit will not start in AUTO with utility loss. LOW OIL PRESSURE | Check oil level. Add oil per Owner’s Manual. Contact servicing dealer if oil level is correct. | |
| Unit will not start in AUTO with utility loss. RPM SENSE LOSS | Clear alarm. From the MAIN menu on the control panel, navigate to the BATTERY MENU. Contact servicing dealer if battery is GOOD. Replace battery If CHECK BATTERY is displayed. | |
| Unit will not start in AUTO with utility loss. OVERCRANK | Clear alarm. Attempt to start the unit in MANUAL. If it does not start or starts and runs rough, contact servicing dealer. | |
| Unit will not start in AUTO with utility loss. FUSE PROBLEM | Check ATO 7.5 amp fuse. Replace with same type fuse if bad. Contact servicing dealer if fuse is good. | |
| Unit will not start in AUTO with utility loss. OVERSPEED | Contact servicing dealer. | |
| Unit will not start in AUTO with utility loss. UNDERVOLTAGE | Contact servicing dealer. | |
| Unit will not start in AUTO with utility loss. UNDERSPEED | Contact servicing dealer. | |
| Unit will not start in AUTO with utility loss. MISWIRE | Contact servicing dealer. | |
| Unit will not start in AUTO with utility loss. OVERVOLTAGE | Contact servicing dealer. | |
| Warning active. LOW BATTERY | Clear alarm. From the MAIN menu on the control panel, navigate to the BATTERY MENU. Contact servicing dealer if battery is GOOD. Replace battery If CHECK BATTERY is displayed. | |
| Warning active. BATTERY PROBLEM | Contact servicing dealer. | |
| Warning active. CHARGER WARNING | Contact servicing dealer. | |
| Warning active. SERVICE SCHEDULE A | Perform SERVICE SCHEDULE A maintenance; press ENTER to clear. | |
| Warning active. SERVICE SCHEDULE B | Perform SERVICE SCHEDULE B maintenance; press ENTER to clear. | |
| Warning active. SERVICE SCHEDULE C | Perform SERVICE SCHEDULE C maintenance; press ENTER to clear. | |
| The engine will not crank. | Fuse blown. | Replace 7.5 amp fuse in generator control panel. Correct short circuit condition if fuse blows again. |
| The engine cranks but will not start. | Out of fuel. | Replenish fuel. Turn on fuel valve. |
| The engine starts hard and runs rough. | Air cleaner plugged or damaged. | Check/replace air cleaner. |
| The generator is set to OFF, but the engine continues to run. | Defective keypad. | * |
| There is no AC output from the generator. | Main line circuit breaker is in the OFF (OPEN) position. | Reset circuit breaker to ON (CLOSED) position. |
| There is no transfer to standby after utility source failure. | Defective transfer switch coil. | * |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Documented causes: Fuse blown.. See the table for the matching fixes.
Documented causes: Out of fuel.. See the table for the matching fixes.
Documented causes: Air cleaner plugged or damaged.. See the table for the matching fixes.