Air controls (venturi knobs) do not change jet intensity or suck in air.

Safety first: Turn off power before removing air control components.

• Check operation: Turn air control knobs fully open and closed while jets are running to see if any change occurs.
• Inspect valves: Remove the air control caps and inspect internal parts for damage or blockage. Clean any debris.
• Blow out lines: With the spa drained below the jets, use low-pressure air to blow through the air lines from the control to the jets.
• Replace air controls: If internal parts are broken or seals are worn, replace the Arctic Spas air control assemblies.