Jandy Suction-Side Air Leak

Pump basket fills with air and large bubbles are visible under the clear lid while running.

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

Damaged pump lid O-ring, Loose suction union, Cracked suction plumbing, Air being drawn from spa drain or unused line via Jandy valve

Safety first: Turn off power before tightening fittings or opening the pump.

Service lid O-ring:
- Clean and lubricate or replace the pump lid O-ring.
Tighten unions and fittings:
- Hand-tighten suction-side unions and check for cracks.
Check valve positions:
- Ensure Jandy valves are not drawing from an empty or closed line.
Inspect above-ground plumbing:
- Look for small drips when pump is off; these can be air leaks when running.
If leak persists: Underground suction leaks require professional pressure testing and repair.

Medium 3/5

Pump Lid O-Ring

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