For further information, please contact the RIVA Service Department.
| Problem | Cause | Corrective action |
| 1. Fluctuating or low oil pressure | Oil level too low | Stop the generator immediately and top up with suitable oil |
| Dirty oil | Replace dirty oil with new suitable oil | |
| 2. Cooling water temperature too high | Excessive load | Reduce the load |
| Air in the cooling circuit | Bleed the circuit | |
| Coolant low level or wrong mixture | Restore the cooling water level and correct percentage | |
| Sea water intake is obstructed or sea water intake strainer is clogged | Clean sea cock and strainer | |
| 3. Black smoke | Engine room insufficient ventilation | Check that air intakes are not obstructed |
| Excessive load |
Reduce the load | |
| Unsuitable fuel | Replace with suitable fuel | |
| Cooling water temperature too high | See step 2 | |
| Lack of maintenance | Have the scheduled maintenance operations carried out | |
| 4. Blue smoke | Excessive oil | Discharge the excess oil by draining oil filters |
| Dirty oil | Replace dirty oil with new suitable oil | |
| Lack of maintenance | Have the scheduled maintenance operations carried out | |
| 5. White smoke | Cold generator | Let the generator warm up |
| Generator with too low load | Increase the generator load | |
| 6. Lack of power | Engine room insufficient ventilation | Check that air intakes are not obstructed |
| Fuel filter clogged | Clean | |
| Unsuitable fuel | Replace with suitable fuel | |
| Cooling water temperature too high | See step 2 | |
| Lack of maintenance | Have the scheduled maintenance operations carried out | |
| 7. Excessive or unusual noise | Insulation cover not properly fastened | Check |
| Leakage from the exhaust | Check the exhaust | |
| Exhaust not properly fastened | Check the exhaust | |
| Lack of maintenance | Have the scheduled maintenance operations carried out |