Rule Bilge Pumps Troubleshooting Guide

SYMPTOM

POSSIBLE CAUSE

POSSIBLE SOLUTION

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

• Verify correct fuse size, (fuse size is printed on the side of the bilge pump.
• If fuse size is correct, check impeller through the inlet opening to be sure it is not jammed or stuck with debris.

Repeated blown fuse

Fuse rating or clogged impeller

• Re-check fuse to verify compliance to pump specifications.
• Also examine impeller area & clean any obstructions.

Pump runs without water output

Airlocking / cavitating

• Inspect & reposition hose for short vertical discharge.
• We suggest installing pump below water line to insure sufficient water flow.
• 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

Pump shaft corroded

Electrolysis, cracked housing

• Inspect pump housing for cracks which can cause leakage into motor cavitycausing corrosion.
• Possible errant current running through wiring causing corrosion.

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

Nozzle breakage

Hose clamp fastened too tightly

• Suggest using plastic style hose clamp, do not use pvc hose

Pump impeller spins backward

Check wiring

• Switch wiring for correct polarity

Wires overheated, melted insulation

Incorrect fusesize, possible jammed impeller

• Inspect & 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