Prr
Hot Spring
Priming Mode / Pump Prime Error
Display shows “Prr” or “PR”; spa may be in priming mode and not heating.
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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
Air in jet pump plumbing, Recently refilled spa not properly bled, Jet pump not starting, Blocked suction or closed slice valves
How to Fix / Troubleshooting
Safety first: Ensure all slice valves are open before running pumps.
- Prime pumps: After a refill, run each jet pump on low and high speed. If a pump hums but does not move water, turn power off and loosen the pump union slightly to release air, then retighten and retry.
- Check suctions: Make sure suction covers are not blocked by debris or ice.
- Cycle power: Once strong flow is established, power-cycle the spa to exit priming mode.
If a pump will not start or repeatedly loses prime, the pump or its capacitor may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Jet Pump Assembly
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