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

Inspect air controls: Turn each Sunrise Spas air control knob fully open and closed. If stiff or free-spinning, the valve may be broken.
Check air intake: Ensure the air intake openings are not blocked by debris or snow.
Replace valve: Remove and replace faulty air control valves from the spa shell.
Verify venturi: If valves are good but no air is drawn, a technician should inspect the venturi tees and check valves in the plumbing.

Air controls do not increase jet intensity when turned

Possible Causes