Display shows Prr or PR, and the spa may not operate normally.

Note: Prr is often a startup message, not a fault.

• Follow priming instructions: On initial fill or after draining, Canadian Spa Company spas may display Prr and require you to run each pump briefly to purge air.
• Bleed air manually: If pumps will not prime, turn power off, loosen pump unions to release trapped air, then retighten.
• Restart spa: Turn power back on and complete the priming cycle as described in the user manual until the display switches to a normal temperature readout.