Ozone indicator is on but there is no visible ozone bubbling in the spa.

Safety first: Turn off power before handling ozone tubing or components.

• Inspect tubing: Follow the small ozone tube from the ozonator to the injector fitting. Check for cracks, kinks, or disconnections.
• Check check-valve orientation: Ensure the ozone check valve is installed in the correct direction (arrow pointing toward the spa water).
• Clean injector: Remove the injector fitting from the plumbing and soak in a descaling solution to clear mineral buildup.
• Replace ozonator: If tubing and injector are fine but no ozone is produced, replace the ozonator with a Lifesmart-compatible unit.