Why doesn't my Liberty climb the walls?

If your Dolphin Liberty has trouble climbing pool walls, follow these checks in order.

1. Step 1Clean the filters and check their fit

   Check for dirt and clogs. Filters can look clean even when small particles have dried onto the material and blocked it. Clean the filter cartridges after every use. A deeper cleaning may be needed to clear a clog.

Watch the filter basket cleaning guide

After cleaning, make sure the filter panels are installed correctly in the basket. They should fit tightly, leave no visible gaps and clip securely to the bracket.

2. Step 2Test briefly without the filter basket

   If the robot still will not climb, remove the filter basket and run it for 10-15 minutes. Run without the basket for this test only.

   Caution: Before starting, make sure the pool has no hard or sharp debris. Without the filter in place, that debris can damage the robot's impeller.

   If the robot climbs with the filters removed, the filters need to be replaced.

3. Step 3Check water balance and slippery walls

   Properly balanced pool water helps your Dolphin perform at its best. Check that the water chemistry is balanced and the pool is free of algae.

   If the robot tries to climb but slips, scrub the wall with a broom until the biofilm is gone. Rebalance the pool water if needed.

   to shop our pool chemicals

4. Step 4Check the water temperature

   Make sure the pool water is within the recommended operating range of 43°–95°F. Cold water can make wall climbing more difficult.