Open the robot detail view. A vacuum leak shows as pick time rising gradually over hours while the other robots absorb load — not as a sudden fault. If pick time jumped in one cycle, this is not a leak: check the mechanical section instead.
Trace the hose from the pump manifold to the suction cup holder. Look for chafing where the hose passes the energy chain — this is the most common wear point on the cap sorter.
A cracked cup seat gives the same signature as a worn hose. Wiggle the fitting gently — any play means the seat is compromised. Replacement seat: part VS-118, stocked in the line-side cabinet.
If the hose is worn but holding and pick time is stable, you can schedule the swap for the next changeover. If pick time is still trending up, replace now — a full leak will stop the robot mid-shift.
Log the finding on the alert — worn hose, cracked seat, or false positive. PackGuru correlates your answer with the signal pattern, so the next alert on any robot gets sharper.