Ozone generator is not operating; no ozone bubbles visible at the ozone jet.

Safety: Turn off power before handling ozone equipment. Avoid inhaling concentrated ozone.

• Check bubbles: With the circulation pump running, look for fine bubbles at the ozone injection point. Lack of bubbles suggests no ozone or no suction.
• Inspect tubing: Trace the ozone tubing from the generator to the injector. Ensure it is connected and not kinked.
• Check valve: Inspect the ozone check valve for cracks or blockage. Replace if suspect.
• Generator status: Some ozone units have an indicator light. If off, the generator may have failed and should be replaced with a Hydropool-approved ozonator.