Onga Partial Prime / Suction Restriction

Pump basket does not fill completely with water; water level sits low and surges.

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Blocked skimmer line, obstruction in suction pipe, air leak at fittings, undersized suction line

How to Fix / Troubleshooting

Safety: Turn off power before working on suction lines.

Clean skimmer and main drain: Remove any visible obstructions and clean baskets.
Vacuum line check: If a dedicated vacuum line is used, ensure it is not partially blocked by toys or debris.
Pressure test: A pool technician can pressure-test the suction line to locate underground blockages or leaks.
Seal fittings: Re-glue or replace any visibly cracked or leaking suction fittings near the Onga pump.

Stable, full priming is essential for pump life; resolve suction issues promptly.

Repair Difficulty

Hard 4/5