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DIAGNOSING PROBLEMS (Electric only)
Most bilge pump problems are mechanical; ie: plugged screen, blocked impellor or foreign material causing impellor drag.
PROBLEM: Pump does not work, and daily inspection shows standing water in the hull.
Solution: Remove water from the hull. Use a pump and discharge hose from spare parts and clip the leads to the battery
pack. The new pump will have 3 leads. (The brown wire is normal “intermittent” operation, the brown/yellow wire is
“pump on” constantly). With the discharge hose exiting to the pond, clip the brown/yellow wire to the positive post of the
battery pack, then clip the black wire (ground) to the negative post of the battery pack. Tip: Replace/re-charge batteries
prior to testing. If the battery pack is discharged, pull up another boat with a charged system and pull the charge lead out.
Use this as your power source to evacuate the water from the inoperative unit. Remove the bilge pump from the holder
clips, and clean the screen and back
fl
ush the intake with a water hose. Inspect the wires for corrosion and/or damage.
(You cannot test voltage drop unless current is
fl
owing in the circuit). Replace the pump using the brown wire as the main
power feed. This provides the proper “amp load” for function of the pump.
PROBLEM: Pump runs constantly.
This is caused most often by a load/drag against the impellor, tricking the system into pumping all the time. Small amounts
of foreign material can cause this. In some cases, a worn impellor shaft can cause excess drag. Clean/replace as needed.
