For further information, please contact the RIVA Service Department.
| Problem | Cause | Corrective action |
| 1. Bilge pump does not run. No water pumped | Wire connections | Check wire connection integrity, make sure wire connections are not corroded |
| A visual check may not be enough, a slight pull on each wire will indicate if wires are still connected | ||
| Check to ensure that no wire joints are hanging down into the water | ||
| Blown fuse | Check the correct fuse size (fuse size is printed on the side of the bilge pump) | |
| If fuse size is correct, check the impeller through the inlet opening to be sure it is not jammed or stuck with debris | ||
| 2. Repeated blown fuse | Fuse rating or clogged impeller | Re-check fuse to verify compliance to pump specifications |
| Also examine impeller area & clean any obstructions | ||
| 3. Pump runs without water output | Airlocking/cavitating | Inspect and reposition hose for short vertical discharge |
| Faulty or clogged check valve may add to pump air locking | ||
| Pump strainer & impeller area clogged with debris | Disconnect pump & clean outside of strainer, clean debris around impeller, & reattached & re-hook wiring | |
| 4. Pump shaft corroded | Electrolysis, cracked housing | Inspect pump housing for cracks which can cause leakage into motor cavity causing corrosion |
| Possible incorrect current running through wiring causing corrosion | ||
| 5. Pump stays on after water is pumped out | Wire connections may be incorrect, automatic pumps may have faulty circuit, possible electrical short | On bilge pumps check for correct positive and negative battery connections |
| 6. Nozzle breakage | Hose clamp fastened too tightly | Suggest using plastic style hose clamp, do not use PVC hose |
| 7. Pump impeller spins backward | Check wiring | Switch wiring for correct polarity |
| 8. Wires overheated, melted insulation | Incorrect fuse size, possible jammed impeller | Inspect and clean impeller area of any debris |
| Make sure that impeller is free to rotate | ||
| Check to make certain correct fuse rating is installed | ||
| REPLACE ALL DAMAGED WIRING |