Ozone generator does not appear to run; no ozone bubbles from designated jet or check valve area.

Safety first: Turn off power at the GFCI breaker before handling ozone equipment. Avoid inhaling concentrated ozone.

• Verify programming: Check the control pack settings to ensure ozone is enabled during filtration cycles.
• Inspect tubing and check valve: Locate the ozone generator and follow the silicone tubing to the injector. Replace any brittle or cracked tubing and a clogged check valve.
• Check generator indicator: Many ozone units have a status light. If it does not illuminate during operation, the generator may have failed and should be replaced.

Ozone is supplemental; maintain proper sanitizer levels even if ozone is not functioning.