Dolphin S400 Troubleshooting

The Dolphin S400 Power-supply or switch is not working.

Cause Solution
  • No voltage in the power socket in the wall.
  • The power supply is not switched ON.
  • Black power cable is not connected into the power supply inlet.
  • Check that there is voltage in the power socket in the wall.
  • Check that the power supply is plugged in and turned ON.
  • Check that the power cable is securely connected all the way
    into the power supply.
  • Turn the power supply OFF. Wait 30 seconds, then turn it back ON.

The Dolphin S400 Pool Cleaner does not move / Red light on the power supply

Cause Solution
  • The blue floating cable is not connected into the power supply.
  • An obstacle is blocking the impeller, tracks or wheels.
  • Pool cleaner is out of water.
  • Check that the blue floating cable is securely connected into the power supply.
  • Unplug the power supply. Open the impeller cover and check that nothing is trapped in the impeller.
  • Verify that nothing is blocking the tracks or wheels.

The Dolphin S400 Pool Cleaner is moving in circles.

Cause Solution
  • Clogged filter basket.
  • Debris stuck in the impeller house or impeller cover.
  • Power supply incorrectly positioned.
  • Algae or pool water is out of spec.
  • Clean the filter basket.
  • Remove debris stuck in the impeller house or impeller cover
  • Place power supply in position so that the Pool Cleaner can freely reach all the pool area.
  • Correct pool and water conditions.

The Dolphin S400 Pool Cleaner does not turn or moves in one direction only.

Cause Solution
  • Debris stuck in the impeller house or impeller cover.
  • Remove debris stuck in the impeller house or impeller cover.

The Dolphin S400 Pool Cleaner moves but does not clean the pool

Cause Solution
  • Clogged filter basket.
  • Debris stuck in the impeller house or impeller cover
  • Clean the filter basket.
  • Remove debris stuck in the impeller house or impeller cover

The Dolphin S400 Pool Cleaner cleans only part of the pool.

Cause Solution
  • Power supply incorrectly positioned.
  • Not enough floating cable is released for the correct operation of the Robotic Pool Cleaner.
  • Place the power supply in a position that enables the Pool Cleaner to freely reach the entire pool area.
  • Check there is enough slack in the blue floating cable for the Pool Cleaner to reach all of the pool. Clean the filter basket.

The Dolphin S400 Blue floating cable has kinks.

Cause Solution
  • Clogged filter basket.
  • Debris stuck in the impeller-house or impeller-cover.
  • Clean the filter basket.
  • Remove debris stuck in the impeller house or impeller cover.
  • To remove the kinks, stretch the floating cable out completely and let it sit for at least a day in the sun.

The Dolphin S400 Pool Cleaner does not climb the walls.

Cause Solution
  • Clogged filter basket.
  • Algae on walls.
  • Unsuitable pH level.
  • Debris stuck in the impeller-house or
    impeller-cover.
  • Clean the filter basket.
  • Check the level of chemicals in the water. Improper levels may allow the growth of algae, making the walls slippery.
  • Adjust chemical levels and scrub walls.
  • Remove debris stuck in the impeller-house or impeller-cover.

 

➤ I have problems with my Dolphin S400

Most Common Dolphin S400 Reported Problems

Power and Charging
1 issues
Performance
1 issues

Technical Malfunction Issues

No value found for field: technical_malfunctions

Power and Charging Issues

No value found for field: power_and_charging

Performance Issues

No value found for field: performance

Setup and Usage Issues

No value found for field: setup_and_usage

Customer Support Issues

No value found for field: customer_support

Other Issues

No value found for field: other

Dolphin S400 Pool Cleaner Not Working?

If you're experiencing issues with your Dolphin S400 pool equipment, you're not alone. Many users have faced similar challenges and have shared their experiences to help others troubleshoot and resolve these problems.

  1. My son’s Dolphin S400 won’t climb the walls. It get half way up and starts to fall away from the top and flip backwards. I’m trying to help as he is so busy.
    Do I need new parts?

    Issue Category:
    Performance

    Ownership Length:
    N/A

    Reply Submit Your Own Issue

  2. My S400 was working fine until today. The app would not connect to unit. Power supply is on, but goes to green wifi. Cannot start the unit from power supply. After deleting and reinstalling app, it recognizes the S400, but I keep getting message that we couldn’t connect your robot. So, I can’t run the robot at all. Any help appreciated.

    Issue Category:
    Power and Charging

    Ownership Length:
    N/A

    Reply Submit Your Own Issue

Submit an Product Issue for Dolphin S400

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