Display shows PRR or Prr, pumps may not start correctly after power-up; spa may be stuck in priming mode.

Safety first: Turn off power at the GFCI breaker before opening unions or working on pumps.

• Check water level: Ensure the water level is high enough to cover all suction fittings and filter intakes.
• Open valves: Verify that all slice/knife valves around the main jet pumps are fully open.
• Bleed air from pump: Loosen the union on the discharge side of the affected pump until air escapes and water begins to leak, then retighten.
• Clear impeller: With power off, remove the pump wet end cover if accessible and inspect the impeller for debris or obstructions. Remove any foreign material.
• Restart priming: Restore power and follow the Arctic Spas priming instructions on the topside panel, toggling the pump on and off in short bursts to help purge air.
• Persistent Prr: If the pump still will not prime, the pump may have internal damage or a seized shaft and may require replacement.