I also recently started having this issue. The robot worked fine (including never got stuck) for 4-5 months.
Maytronics, somewhere on their website, says this is usually due to poor water flow through the robot's filters. Which makes sense, since less flow = less suction = less traction. They suggest soaking your filters overnight, even mesh filters which may look clean to the eye but might have organic buildup. I have not done this yet, but plan to soak the Z5 filters overnight in (dishwasher powder solution) Cascade soon. One cup per 5 gal water is what has been recommended for main pool filters on TFP. I did this with my main filters, and the greasy stuff came right off. I will report back with results.
If that does not work, make sure the impeller spins freely (no hair around the shaft, etc.).
If that does not work, I will replace the brushes next. They have the foam ring which is needed for climbing walls.
With a one-year-old somewhat neglected robot, I am willing to bet restricted water flow is the culprit.
Maytronics, somewhere on their website, says this is usually due to poor water flow through the robot's filters. Which makes sense, since less flow = less suction = less traction. They suggest soaking your filters overnight, even mesh filters which may look clean to the eye but might have organic buildup. I have not done this yet, but plan to soak the Z5 filters overnight in (dishwasher powder solution) Cascade soon. One cup per 5 gal water is what has been recommended for main pool filters on TFP. I did this with my main filters, and the greasy stuff came right off. I will report back with results.
If that does not work, make sure the impeller spins freely (no hair around the shaft, etc.).
If that does not work, I will replace the brushes next. They have the foam ring which is needed for climbing walls.
With a one-year-old somewhat neglected robot, I am willing to bet restricted water flow is the culprit.