My robotic pool cleaner slips and can’t climb the wall, what should I do?

The most common reason robotic pool cleaners suddenly stop climbing your pool wall is because the surface becomes slippery due to algae build up. When algae starts to build up in your pool it forms a thin transparent film over the hard surface of your pool. It is slippery and causes all robots to lose grip inhibited your cleaner from climbing up. It is only as time passes and the algae is left untreated that it becomes visible usually more so in certain areas. Unfortunately, we can’t fix your robot to overcome this issue. The best course of action is to use a reputable algicide.