Display shows Pr and pump runs at a low speed attempting to prime but does not transition to normal operation.

Safety first: Turn off power at the breaker before opening the pump lid.

• Fill the pump: Remove the pump lid and fill the strainer housing completely with water. Reinstall the lid, ensuring the Hayward lid O-ring is clean and lubricated.
• Open valves: Confirm all suction valves (skimmer, main drain) are fully open. Close any unused lines that may be drawing air.
• Check for suction leaks: Inspect unions, fittings, and the pump lid for air leaks. Tighten unions and replace worn O-rings or gaskets.
• Clean skimmer baskets: Empty all skimmer and pump baskets to ensure unobstructed flow.
• Adjust priming settings: On variable-speed models, increase the priming RPM and/or priming time in the menu so the pump has enough power and time to establish full prime.
• Re-test: Restore power and start the pump. If it still cannot prime, further investigation of suction plumbing for blockages or underground leaks may be required.