Why isn't my EON 100/120d cleaning properly?

For the Dolphin EON 100, work through these checks if the robot will not start, moves in circles, will not climb walls, travels in only one direction, or leaves the pool poorly cleaned.

1. Step 1Clear obstructions

   • Look over the tracks and wheels. Carefully clear away any debris.
   • Inspect the impeller and its housing for trapped hair, leaves, or other debris. Clean them as needed.

2. Step 2Rinse the filter basket

   • Take out the filter basket and rinse it thoroughly. A clean filter should look white.
   • If the filter looks brown or green, use a hose to clean it.
   • If you use the monoblock filter basket in the EON 100, check that it is installed correctly, with the latch pointing toward the impeller.

3. Step 3Check the pool water

   • Check the pool's chemistry, paying particular attention to pH.
   • Too much algae or unbalanced water can interfere with movement and wall climbing. Contact Poolbots' pool experts by live chat or phone for guidance on pool treatment.
   • After a chemical treatment, wait 24 hours before returning the robot to the pool.

4. Step 4Check startup, charge, and cleaning cycles

   • Turn the robot on, then put it in the water within 30 seconds.
   • Confirm a full charge by looking for 3 green bars on the battery LED.
   • In a pool with heavy debris, several shorter cleaning cycles may be needed. Clean the filter between cycles to help maintain cleaning performance.

5. Step 5Review error alerts

   • When the red error LED is lit, check the app for error messages. Follow the troubleshooting steps shown there.

6. Step 6Recognize normal behavior

   • Once a cleaning cycle ends, the robot waits on the pool floor near its Homing Wall.
   • If a Clicker was included, shake it in the water for 3–5 seconds to bring the robot to the waterline.
   • If you do not retrieve the robot within one minute, it descends again and turns toward a different wall.
   • Pressing the power button has no effect while the robot is connected to its charger. During charging, the battery LED flashes green.

If these checks do not resolve the problem, contact Poolbots' pool experts by live chat or phone for help with the next step.