A robot that ends up wheels-up on the pool floor cannot clean, and it usually signals a balance or traction problem rather than a broken motor.
Trapped Air and Uneven Weight
Air caught in the housing shifts the robot's center of gravity, making it prone to tipping on slopes and steps. Always burp the air out by submerging the unit on its side until the bubbles stop. An unevenly packed or partially clogged filter also unbalances the robot — empty and rinse it, and make sure debris is not bunched to one side.
Worn Tracks and Brushes
When drive tracks are worn or loose, the robot loses grip on inclines and can somersault as it tries to climb. Inspect the tracks and brushes for wear and replace them from our parts page. Fresh traction keeps the cleaner planted through turns and wall transitions.
Slopes, Steps, and Drains
Steep transitions — deep-end slopes, the main drain, or a sudden step — are common flip points, especially for lighter budget robots. A flush clip-on drain cover smooths out the worst offender. If your robot still flips on normal contours, it likely lacks the weight and smart navigation to handle your pool. Gyroscopic, well-balanced corded models like the Dolphin Sigma track deliberately and recover from obstacles instead of toppling. See more dependable options in our best robotic pool cleaners guide.
