Welcome to our forum.
Our experience has been , especially in the earlier months of ownership, while cleaning the spa, or wiping it down, they inadvertantly turn the face of the jets not realizing or remembering they can rotate and be turned off. When they call and we ask if they checked the jets, it's telephone orientation time.The second instance would be not changing or cleaning the filter and realizing the pump has an inability to draw maximum gpm through a clogged filter. The Recommendation, take the filter out and check the pressure, usually they don't call back sometimes they do and even say thank you. Another scenario could be, while cleaning the spa, they removed the filter with the pump running. We have removed a wide variety of items from the impellar which obviously were sucked in with the filter out, and of course that interferes with the aability of the pump to push water and impedes performance.All three of the above are covered by the extended lifetime warranty.