Jandy
Valve Positioning and Air Ingress Issue
Pump will not stay primed when switching between pool and spa modes.
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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.
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Possible Causes
Incorrect actuator cam settings, Air entering from spa drain line, Suction valve not fully sealing in one position
How to Fix / Troubleshooting
Safety first: Turn off power before adjusting valve actuators or moving valves.
- Verify manual valve positions:
- Ensure Jandy valves are correctly labeled and oriented for POOL and SPA modes.
- Adjust actuator cams:
- On Jandy actuators, remove the cover and adjust cam stops so valves fully open/close the intended ports.
- Check for leaks on spa suction:
- Inspect spa suction line and fittings for air leaks that appear only in spa mode.
- Prime after switching:
- After changing modes, bleed air from filter and confirm pump basket remains full.
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Repair Difficulty
Medium
3/5
Required Part
Jandy Valve Actuator
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