Ozone indicator is on but there is no visible ozone bubbles or smell at the ozone injection point.

Safety first: Turn off power before working on ozone equipment.

• Inspect tubing: Locate the ozone generator in the Dynasty Spas equipment bay and follow the clear tubing to the injector. Check for kinks, cracks, or disconnections.
• Check valve: Find the ozone check valve in the tubing and ensure it is oriented correctly (arrow toward spa). Replace if clogged or stuck.
• Replace ozonator: If the unit is several years old or shows no output, replace the ozonator with a Dynasty-compatible corona discharge or UV unit, as originally equipped.
• Verify operation: After replacement, run the circulation cycle and look for fine bubbles at the ozone injection point.