For further information, please contact the RIVA Service Department.
| Problem | Cause | Corrective action |
| 1. No water to outlets | Circuit valves closed or not fully open | Check/open |
| Tanks empty | Fill the tanks and bleed the circuit | |
| Pump not receiving electric power supply | Check | |
| 2. Pump starts even with outlets closed | Circuit leaking | Eliminate leakage |