Display shows Prr or PR, spa may be in priming mode after power-up, pumps may run intermittently.

Safety first: Ensure all jets are open and the spa is filled before powering on.

• Allow priming to complete: After restoring power, Aquaterra Spas often enter a priming mode (Prr/PR) to allow air to purge from pumps. Follow the on-screen instructions or press the designated button to exit priming after confirming water flow.
• Bleed air if needed: If pumps are noisy or not moving water, turn power OFF, open the equipment bay, and loosen pump unions slightly to release trapped air. Retighten and restore power.
• Check for stuck in priming: If the spa remains in Prr and will not enter normal mode, cycle power and attempt priming again. Persistent issues may indicate a control board fault.

Prr is typically not an error but a mode. If you cannot exit this mode, contact Aquaterra Spas support or a technician.