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Selectable 1.5, 2, or 2.5-hour cordless cycles sized for pools up to 50 feet.
Steps, Ledges & Corners
Multi-zone navigation cleans shallow sun shelves, stairs, walls, and waterlines.
Maytronics One Wi-Fi App
Customize cycle lengths, zone focus, and firmware updates.
Top-Access Fine Basket
Easy one-hand top removal and garden-hose cleanup.
Balanced 22.1-Lb Frame
Manageable poolside lift weight with wall-parking retrieval.
2-Year Maytronics Warranty
Factory coverage for the cordless EON platform.
The Bottom Line
Where the Dolphin EON 100 Fits
Best For
50-ft inground pools with steps and sun shelves seeking next-generation cordless Dolphin mobility.
What We’d Buy
A 50-ft cordless cleaner built to reach steps, ledges, walls, and waterline, with selectable cycle lengths in the app.
Cordless EON or Corded Quantum?
The Dolphin EON 100 is also sold online as the Dolphin Nautilus EON 100. Choose it for cable-free step and ledge cleaning. Compare the Dolphin Quantum if a larger basket and no charging routine matter more.
The Dolphin EON 100 is a cordless robotic pool cleaner from Maytronics, rated for in-ground and above-ground pools up to 50 ft long. It cleans the floor, walls, waterline, steps, ledges & corners on a 2-hour default cycle (cycle options: 1.5 h, 2 h, 2.5 h), using an active scrubbing brush.
Filtration is a fine filter kit with top access. It connects to the Maytronics One app. The robot weighs 22.1 lb and carries a 2-year Maytronics warranty.
No more missed spots. Just a pool that’s always ready to enjoy.
Maytronics, on the Dolphin EON 100
Specifications
Dolphin EON 100 Specs
Product Attributes
Maximum Pool Length
50 ft
Cleaning Coverage
Floor, Walls and Waterline, Steps, Sun Ledge, Corners, Safety Ledge
Specifications as published by Maytronics for product no. 99994400-US (UPC 850015249358).
FAQ, Manuals & Parts
Dolphin EON 100 FAQ & Owner Support
Frequently asked questions
Straight answers on parts, ownership, and the closest models you can order today.
EON 100 vs. EON 120d—what is the difference?
The Dolphin EON 120d adds a BackWash filter system, charging dock, longer marathon runtime, and a 3-year warranty.
Why doesn't my cordless robot respond to the App while underwater?
Our cordless models, the EON™ and Liberty 400/600, do not remain connected to Wi-Fi or Bluetooth while submerged and operating in the water.
After removing the robot from the water, if it was connected before, the Wi-Fi connection between the robot and the app will automatically reestablish.
To use the Maytronics One app, connect to the robot via Wi-Fi, configure your desired cleaning mode or weekly schedule (UltraRun™ Mode/Eco Mode), and then place the robot in the pool to begin the cycle. Once the robot is in the pool, it will run the selected program independently.
Our corded units allow for continuous Wi-Fi connectivity, as the connection is maintained through the power supply, which remains outside the water.
Note- The Liberty 400 pairs via Bluetooth only to the MyDolphin Plus app.
My EON™ isn't behaving properly
If your EON is not working properly, the first and most important step is to make sure your robot software is up to date.
Software updates include the latest improvements and fixes to help ensure your robot performs as expected.
Update Your EON Robot Software
Download the MaytronicsOne app and make sure Bluetooth is enabled on your smartphone.
Fully charge the robot. The battery indicator should show three solid green bars. Disconnect the robot from the charger before continuing.
Open the MaytronicsOne app, create an account or sign in, and enter the validation code sent to your email.
Press and hold the power button for 3–5 seconds to enable Bluetooth pairing. The LED will blink blue.
Follow the on-screen instructions to pair your robot. Once your robot is found, select it to begin pairing. Make sure your smartphone is not currently connected to another Bluetooth device.
Complete the software update if prompted. This step is essential.
During the update:
Stay near the robot.
Do not close the app or leave the update screen until the update is complete.
Do not interrupt the update process.
Once the software update is complete, connect the robot to 2.4 GHz Wi-Fi. You can also choose to skip Wi-Fi setup and connect later.
Once the robot is successfully connected, the LED will blink three times and then turn solid blue.
Important: Always make sure your EON is running the latest available software before continuing with additional troubleshooting.
Keeping the robot software updated ensures your EON has the latest improvements and capabilities.
How does Dolphin EON™ save you up to 20 hours per year on maintenance?
Dolphin EON™ reduces the time spent cleaning filters thanks to its patented backwash filtration technology (DebrisLock™).
Instead of cleaning the filter frequently, maintenance can be reduced to about 5 minutes once per week, helping save up to 20 hours of maintenance time per year.
DebrisLock™ technology works by:
Compressing and trapping fine particles for more efficient filtration
Providing 1-liter backwash capacity to flush debris out easily
Featuring a bottom double-opening design for quick and convenient cleaning
The DebrisLock™ backwash filter comes with EON 120d and is available as an add-on for EON 100.
How do I connect to the Maytronics One App for the first time?
The robot does not stay connected to Wi-Fi + Bluetooth while operating in the water.
Use the Maytronics One App to pair with your Liberty 600, EON 100, or EON 120d to monitor and customize your robot’s settings.
Easily set a weekly cleaning schedule, choose from various cleaning modes, and access additional features for effortless pool maintenance!
To get started, download the Maytronics One App and ensure Bluetooth is enabled on your smartphone.
Make sure the robot is not plugged into charge.
Open the Maytronics One App, sign up, and enter the validation code that is sent to your email.
Press the power button to turn on and hold for 3-5 seconds to enable Bluetooth pairing, then proceed to pair your robot.
Follow the on-screen instructions to connect via Bluetooth. Make sure to complete the software update if prompted!
You can complete the process and connect via Wi-Fi (2.4 GHz Only) or delay the Wi-Fi pairing and connect later. If you get stuck on a loading screen, try going back, selecting the robot again, and continuing.
Once connected, the LED will blink three times and turn solid blue.
After removing the robot from the water, if it was connected before, the connection between the robot and the app will automatically reestablish.
Note: Up to 1 user can connect via Bluetooth at a time, but up to 5 users can connect to the robot via Wi-Fi. You can unpair irrelevant users in the app settings.
How does Dolphin EON™ deliver water that’s up to 4X clearer than competitors?
Our Dolphin EON™ features an advanced filter design that captures more debris and fine particles during each cleaning cycle. In internal 70-minute turbidity tests, the Dolphin EON™ 120d delivered water up to 4X clearer compared to other leading pool robots.
The test compared Dolphin EON™ 120d, Aiper Scuba X1 ProMax, and M400 robots. All units started with identical water turbidity levels of 7 NTU.
Our filtration advantages include:
4/5-direction filtration that captures debris from multiple angles
4–5 liter debris capacity for longer cleaning cycles
Larger filtration basket for improved debris capture
Closed chamber design that prevents dirt from returning to the water
Together, these features help deliver noticeably clearer pool water after every clean.
Troubleshooting the Dolphin EON 100
Maytronics' own fixes for the problems owners report most, followed by the symptom table from the user manual.
Why doesn't my cordless robot respond to the App while underwater?
Our cordless models, the EON™ and Liberty 400/600, do not remain connected to Wi-Fi or Bluetooth while submerged and operating in the water.
After removing the robot from the water, if it was connected before, the Wi-Fi connection between the robot and the app will automatically reestablish.
To use the Maytronics One app, connect to the robot via Wi-Fi, configure your desired cleaning mode or weekly schedule (UltraRun™ Mode/Eco Mode), and then place the robot in the pool to begin the cycle. Once the robot is in the pool, it will run the selected program independently.
Our corded units allow for continuous Wi-Fi connectivity, as the connection is maintained through the power supply, which remains outside the water.
Note- The Liberty 400 pairs via Bluetooth only to the MyDolphin Plus app.
My EON™ isn't behaving properly
If your EON is not working properly, the first and most important step is to make sure your robot software is up to date.
Software updates include the latest improvements and fixes to help ensure your robot performs as expected.
Update Your EON Robot Software
Download the MaytronicsOne app and make sure Bluetooth is enabled on your smartphone.
Fully charge the robot. The battery indicator should show three solid green bars. Disconnect the robot from the charger before continuing.
Open the MaytronicsOne app, create an account or sign in, and enter the validation code sent to your email.
Press and hold the power button for 3–5 seconds to enable Bluetooth pairing. The LED will blink blue.
Follow the on-screen instructions to pair your robot. Once your robot is found, select it to begin pairing. Make sure your smartphone is not currently connected to another Bluetooth device.
Complete the software update if prompted. This step is essential.
During the update:
Stay near the robot.
Do not close the app or leave the update screen until the update is complete.
Do not interrupt the update process.
Once the software update is complete, connect the robot to 2.4 GHz Wi-Fi. You can also choose to skip Wi-Fi setup and connect later.
Once the robot is successfully connected, the LED will blink three times and then turn solid blue.
Important: Always make sure your EON is running the latest available software before continuing with additional troubleshooting.
Keeping the robot software updated ensures your EON has the latest improvements and capabilities.
How do I clean the impeller on the EON™ 100/120d?
Follow the steps to clean the impeller:
Remove the filter from the robot.
Connect the charger to the robot and plug it in.
As a safety measure, take a screwdriver and put it in the opening between the handle and the filter cover latch. (Do not skip this step!)
Open the filter cover door to reach the impeller opening.
Remove any debris that is stuck in the impeller.
The EON™ 100/120d isn't climbing
If your robot is not climbing the walls, try the following troubleshooting steps:
Check the app settings
Make sure the Scanning pattern is set to Maze. In Maze, the robot starts climbing walls from the beginning of the cycle.
If set to Line-by-Line, the robot cleans the floor during the first two-thirds of the cycle and climbs walls only during the final third.
Run the robot in UltraClean mode with the Maze scanning pattern.
The robot will only climb when its front side is facing the wall. It will not climb if the rear side reaches the wall first.
Clean the filter basket
A clogged filter basket can reduce suction and climbing performance.
Remove the filter basket and rinse it thoroughly with a hose
The filter should appear white when clean
If the filter appears brown or green, continue rinsing until clean.
Inspect the tracks and wheels and carefully remove any debris.
Check the impeller and impeller housing for hair, leaves, or debris, and clean as needed.
Check for software and app updates
Make sure you are using the latest version of the Maytronics One app. Update the app if an update is available.
If the app prompts you to update the robot’s software, complete the update before running another cycle
Outdated software may affect navigation and climbing behavior.
Verify Proper Water Conditions
Check your pool's chemistry levels, especially the pH.
Excess algae or improper water balance can affect movement and wall climbing. In these cases, we recommend consulting a pool professional for treatment.
Why isn't my EON™ 100/120d charging?
If your robot is not charging, follow these steps:
Check the power outlet:
Make sure the wall outlet is working by testing it with another device.
The charger LED should turn green when it is receiving power.
Inspect the charger connections:
Make sure the charger is securely connected to the robot.
Ensure the charging contacts on both the robot and charger are clean and free of debris.
Charge in proper conditions:
Charge the robot indoors or in a shaded area.
In hot weather, try charging at night to avoid overheating. If the battery LEDs are blinking simultaneously, the battery or charger temperature is to high.
Allow enough charging time:
A full charge can take up to 4.5 hours.
Make sure the robot remains connected for the entire charging period.
Why isn't my EON™ 100/120d not cleaning properly?
If your robot is not starting, is moving in circles, is not climbing walls, is moving in only one direction, or is not cleaning the pool effectively, try the following steps:
Check for obstructions
Inspect the tracks and wheels and carefully remove any debris.
Check the impeller and impeller housing for hair, leaves, or debris and clean as needed. Click here for instructions
Clean the filter basket
Remove and rinse the filter basket thoroughly.
The filter should appear white when clean.
If it is brown or green, clean it with a hose.
For the EON 100, if you are using the monoblock filter basket, make sure the basket is installed correctly with the latch facing the impeller.
Verify proper water conditions
Check pool chemistry levels, especially pH level. Click here for more information.
Excess algae or improper water balance can prevent proper wall climbing and movement. In this case, consult a pool technician about pool treatment. Wait 24 hours after a chemical treatment before putting the robot in the water.
Ensure the robot is used correctly
Start the robot and place it in the water within 30 seconds.
Make sure the robot is fully charged (3 green bars on battery LED)
If the pool contains a large amount of debris, you may need to run multiple shorter cleaning cycles and clean the filter between cycles to maintain cleaning efficiency.
Check for error indicators
If the red error LED is on, open the app to check for error messages and follow the recommended steps.
Make sure normal behavior
At the end of a cleaning cycle, the robot will wait on the pool floor near its Homing Wall.
Use the Clicker (if included) by shaking it in the water for 3–5 seconds to call the robot to the waterline.
If the robot is not retrieved after one minute, it will go back down and turn to face a different wall.
The robot does not react if the power button is pressed while it is plugged into the charger. The battery LED will flash green while charging.
If the issue persists after completing these steps, contact customer support for further assistance.
Symptom
Possible reason
What to do
tom
Possible reason
Corrective action
pair the ics OneTM app to tic pool cleaner.
• The Bluetooth® on one of your devices is either OFF or not in pairing mode. • The mobile phone is too far from the robot. • Mobile phone location is OFF. You did not give the required permissions when installing the app. • Battery is too low.
• Turn the Bluetooth® OFF and on in your smartphone. For iOS – Go to settings → Bluetooth®. • Get closer to the robot. • Turn mobile phone location ON • Fully charge the robot • Check that the robot's charger is connected well and that your mobile phone's Bluetooth® is searching for nearby devices. • Try uninstalling and reinstalling the Maytronics OneTM app, and give all permissions. If it still doesn't find your robot, try restarting your mobile phone. • If none of the above troubleshooting helps, contact wecare@maytronics.com
Fi® doesn't stay ed. It works via th® when near t, but loses equently.
• The Wi-Fi® router alternates between 2.4 and 5 GHz frequencies causing disconnection when the 2.4 one is lost. • The Wi-Fi® signal is too weak to maintain a connection.
• The device connects only to the standard 2.4 GHz Wi-Fi® frequency. If you have a dual or quad band router, to prevent connectivity issues, split and give separate names to the 2.4 and 5GHz networks. Consult your internet provider or see online instructions for your specific router brand. • If the signal near the power supply is not strong enough to easily stream an online video, consider installing a 2.4GHz Wi-Fi® extender.
From the Dolphin EON 100 user manual's troubleshooting table.
This model next to the three ProLine™, Max-Series™ and Clear™ robots closest to its price. Use the dropdowns to put any robot in a column: every Dolphin line, the Clear™ Series, and the other brands we carry.
