Dolphin EON 120d manual and guides.

Short answer: Your cordless robot disconnects from Wi-Fi and Bluetooth underwater, so select its cleaning program in the app before placing it in the pool.

Cordless EON™ and Liberty 400/600 robots do not maintain a Wi-Fi or Bluetooth connection while submerged and cleaning. Once underwater, the robot follows its selected program on its own, without an active app connection.

Set the program before putting the robot in the pool

These Maytronics One app instructions apply to Dolphin EON 100, Dolphin Nautilus EON 100, Dolphin EON 120d, Dolphin Nautilus EON 120d, and Dolphin Liberty 600.

1. With the robot out of the water, connect to it over Wi-Fi in the Maytronics One app.
2. Choose your cleaning mode or weekly schedule (UltraRun™ Mode/Eco Mode).
3. Put the robot in the pool to start the cycle. It will carry out the program you selected independently.

Reconnecting after cleaning

If the robot was previously connected, its Wi-Fi connection to the app returns automatically after you take it out of the water.

Other connection types

Corded robots can stay connected to Wi-Fi throughout cleaning because their connection runs through the power supply, which stays outside the pool.

Liberty 400 uses Bluetooth only and pairs with the MyDolphin Plus app, not the Maytronics One app.

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Short answer: Update your EON's software in the MaytronicsOne app before trying other troubleshooting steps.

Applies to: Dolphin EON 100, Dolphin Nautilus EON 100, Dolphin EON 120d.

Start by checking that your robot has the latest software. Updates provide fixes, improvements, and capabilities that help your EON work as intended.

Update your EON's software

1. Step 1: Prepare your phone Download the MaytronicsOne app and turn on Bluetooth on your smartphone.

2. Step 2: Charge and disconnect the robot Charge the robot fully. Check that the battery indicator displays three solid green bars, then disconnect the robot from its charger before moving on.

3. Step 3: Sign in to the app Open the MaytronicsOne app. Create an account or sign in to an existing one, then enter the validation code you receive by email.

4. Step 4: Turn on Bluetooth pairing Hold the robot's power button for 3–5 seconds to activate pairing. Look for a blinking blue LED.

5. Step 5: Pair your robot Follow the app's on-screen pairing instructions. When your robot appears, select it to start pairing. Your smartphone must not be connected to another Bluetooth device during this step.

6. Step 6: Complete the software update If the app offers a software update, complete it. This is an essential part of troubleshooting.

   During the update:

   • Keep your phone close to the robot.
   • Keep the app open and stay on the update screen until it finishes.
   • Allow the update to finish without interruption.

7. Step 7: Set up Wi-Fi After the software update finishes, connect the robot to a 2.4 GHz Wi-Fi network. You can skip this setup and connect to Wi-Fi later if you prefer.

8. Step 8: Check the connection light A successful connection is indicated by three LED blinks, followed by a steady blue light.

Important: Before moving on to any other troubleshooting, confirm that your EON is running the latest available software.

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Short answer: With DebrisLock™ backwash filtration, Dolphin EON can reduce filter maintenance to about 5 minutes once a week, saving up to 20 hours per year.

Dolphin EON™ uses patented DebrisLock™ backwash filtration to reduce how often you need to clean the filter. With this system, maintenance can take about 5 minutes once a week, helping save up to 20 hours per year.

DebrisLock™ reduces filter-cleaning work through three features:

• Fine-particle capture: It compresses and holds fine particles for more efficient filtration.
• 1-liter backwash capacity: It allows collected debris to be flushed out easily.
• Two openings at the bottom: This design makes cleaning quick and convenient.

The DebrisLock™ backwash filter is included with Dolphin EON 120d and sold as an add-on for Dolphin EON 100.

Applies to: Dolphin EON 100, Dolphin Nautilus EON 100, Dolphin EON 120d.

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Short answer: The EON 120d combines 14-micron filtration, a 4-liter DebrisLock™ basket and automatic backwashing to collect debris and help keep it out of pool water.

The Dolphin EON 120d uses an ultra-fine, 14-micron DebrisLock™ filter basket. Its lid helps trap more debris while allowing filtration from all directions.

The basket’s 4-liter capacity lets it collect more debris during each cleaning cycle. Its closed chamber helps keep captured dirt and debris from returning to the pool water, supporting better cleaning performance.

The basket also has a built-in filter backwash system. An additional 1-liter backwash compressed container helps keep debris locked inside the filter.

Backwashing runs automatically at the end of the cleaning cycle and when the filter is full to help improve overall performance.

For help with filter parts, contact Poolbots' pool experts by live chat or phone.

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Short answer: Dolphin EON's filtration captures debris and fine particles, with up to 4X clearer water measured in internal Dolphin EON 120d tests.

Applies to: Dolphin EON 100, Dolphin Nautilus EON 100, and Dolphin EON 120d.

Dolphin EON™ uses a filter design built to collect more debris and fine particles during each cleaning cycle. Several features work together to help leave pool water noticeably clearer after each clean:

• 4/5-direction filtration: Collects debris from multiple angles.
• 4–5 liter debris capacity: Holds more debris to support longer cleaning cycles.
• Larger filtration basket: Helps improve debris collection.
• Closed chamber design: Keeps trapped dirt from getting back into the pool water.

Where the up to 4X result comes from

Maytronics' internal 70-minute turbidity tests compared Dolphin EON™ 120d, Aiper Scuba X1 ProMax, and M400. Every robot began with water at the same turbidity level of 7 NTU.

In those tests, Dolphin EON™ 120d achieved water up to 4X clearer than the other leading pool robots tested. The claim reflects that internal test comparison.

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