Dolphin owners' support
Every Dolphin support answer, in plain English.
199 answers from Maytronics support, rewritten by Poolbots' pool experts with a short answer up top and the parts that fix it below. Search them, browse by topic, or start from your robot's own troubleshooting guide.
Browse by topic
Answers by topic.
Choosing a Dolphin RobotWhich robot suits your pool: size, surface, brushes, filters and cordless or corded.9 answers ›
Corded Dolphin: Using Your RobotGetting started, care and maintenance, navigation, safety and the S-line face lift.52 answers · 10 fixes ›
Corded Dolphin: TroubleshootingThe fixes for the problems owners report most: cycles, climbing, cleaning, power and connectivity.28 answers · 28 fixes ›
Dolphin EON 100/120dThe cordless EON 100 and 120d: the Maytronics One app, charging, filters and troubleshooting.41 answers · 12 fixes ›
Dolphin LibertyLiberty 200, 300, 400 and 600: charging, the Clicker, the app and what to do when it stops.32 answers · 15 fixes ›
Dolphin SkimmiSkimmi and Skimmi 300 solar skimmers: setup, the app, maintenance and fixes.29 answers · 8 fixes ›
How to Replace Parts at HomeStep-by-step guides and videos for the parts you can swap yourself.10 answers · 3 fixes ›
Warranty & RepairWhat the warranty covers and how to get a robot repaired.4 answers · 1 fixes ›
Pool ChemicalsWater balance basics: alkalinity, pH, calcium, clarifiers and conditioners.16 answers ›
NiyaThe Niya Aquasweep and the Sonar and Tracker robots.4 answers ›
Most asked
The questions owners ask first.
- Why should I register my robot?Registering your Dolphin helps speed up warranty service and creates an official ownership record for loss, theft, or warranty claims.
- What settings are available on my Liberty 300/400?Dolphin Liberty 300 offers Eco Mode, Floor Only cycles and Clicker pickup; Liberty 400 also has app settings and End of Cycle Pickup.
- Why won't my Dolphin Skimmi connect to the MyDolphinSkimmi app?Reinsert the filter tray, recharge in direct sunlight, bring your phone close, and close the app on any other connected phone.
- Why won't my Dolphin climb walls or move sideways on walls?Check water temperature, chemistry, cleaning modes and filters, then inspect the impeller, handle position, cable length and brushes.
- Why doesn't my cordless robot respond to the app while underwater?Your cordless robot disconnects from Wi-Fi and Bluetooth underwater, so select its cleaning program in the app before placing it in the pool.
- How do I open my pool for the season after winter?Remove debris, balance the water, and treat algae before using your Dolphin, waiting 24 hours after shocking the pool.
- Why won't my Dolphin robot start when the power supply works?Inspect the blue cable, restart the power supply using a different outlet, and check the impeller and tracks for blockages.
- Why won't my Dolphin finish a cycle, or why is the power supply light red?If your Dolphin stops early or the power supply shows a red light, first check whether the power supply shuts off when the robot stops.
- Why isn't my Dolphin power supply working properly?Check the outlet and cables, then test the power supply with the blue cable disconnected to help identify a power supply, cable, or motor issue.
- How do I connect my Dolphin to Wi-Fi with MyDolphin Plus?Pair your Dolphin through Bluetooth first, then connect it to a 2.4 GHz Wi-Fi network in MyDolphin Plus.
- My Dolphin is not working. Where can I send it for repair?After troubleshooting, you can ship your Dolphin to a Maytronics Master Service Center or take it there for repair.
- How long is the warranty on my Dolphin?Dolphin warranties typically last 12 to 36 months, depending on the model. Check your robot's product page for its exact warranty period.
- Why isn't the Skimmi charging in a sunny location?The Skimmi may already have a full battery, so check direct sunlight and the app's charging strength before looking for limescale or a battery issue.
- Why is my Dolphin Skimmi moving in jerks or making noise?For jerky movement or noise, turn off Smart Detect in the app, then empty and rinse the filter tray.
- How do I clean a jammed front paddlewheel on my Dolphin Skimmi?Turn off and remove your Dolphin Skimmi from the pool, clear the front paddlewheel, and empty and rinse the filter tray.
- Why does my Dolphin Skimmi often stand still and clean for less time?Adjust cleaning and pause settings, reduce energy use, enable Smart Solar Recharge, clean the solar panel, and empty the filter tray more often.
- My Dolphin's filter is full. How do I clean it?After each cycle, remove your Dolphin's filter basket or panels, rinse away debris with a garden hose, and reinstall them without waiting for them to dry.
- Why isn't my Dolphin cleaning the pool properly?Check the filters, clear debris blockages, verify water conditions and cable reach, and match the filter and brush to your pool.
- How do I set the cleaning modes on the EON 100/120d?Choose a cleaning mode with the robot's power button or the MaytronicsOne app while the robot is disconnected from the charger.
- How long can I leave my Dolphin in the pool?Remove your Dolphin after each cycle, or leave it in for the full week if your model has a weekly timer or Eco Mode.
- How do I properly store my Dolphin?After each cycle, remove your Dolphin from the pool and store it and its power supply away from direct sun, extreme temperatures and pool chemicals.
- How do I connect to the Maytronics One App for the first time?Download the Maytronics One App and pair your robot over Bluetooth with the charger disconnected; 2.4 GHz Wi-Fi setup is optional.
- Which Dolphin app should I download for my robot?Check your Dolphin model's product page or manual to choose the right app, since some robots do not support app control.
- Why isn't my EON behaving properly?Update your EON's software in the MaytronicsOne app before trying other troubleshooting steps.
Every answer
All 199 support answers.
- How do I remove something stuck in my Dolphin Wave 90i tracks?
- How do I clean a clogged impeller on my Dolphin Wave 90i?
- Which filters come with the Wave 90i?
- Can I swim while my Dolphin is cleaning the pool?
- How can I use my Dolphin in the safest way?
- How do I clean my Wave 90i filter?
- Why is Eco Mode not working on my Dolphin Liberty?
- How do I assemble the Dolphin caddy?
- Can I use my Dolphin with an extension cord or surge protector?
- What is the safest way to use my Dolphin Liberty induction charger?
- How do I properly store my Liberty robot?
- Why should I register my robot?
- What settings are available on my Liberty 300/400?
- What is Eco Mode, and how do I set it?
- How do I remove my Dolphin Liberty from the pool?
- Why isn't my Liberty 600 reaching the steps?
- How do the features on my Liberty 600 work?
- Which filters come with my Dolphin Liberty?
- What is the safest way to use my Dolphin Liberty?
- Why does my Liberty power on but not move?
- Why does my Dolphin Liberty 600 start and then stop or show a red LED?
- Why are my Dolphin’s tracks loose or falling off?
- Where can I find the user manual for my Dolphin?
- My Liberty 600 has stopped working. What should I do?
- What is the right brush type for my pool?
- How do I replace the Liberty power pack unit?
- How do I get started with my Dolphin Liberty?
- Can I start my Dolphin from anywhere in the pool?
- How do I plug the blue cable into the power supply?
- What is the Cycle Selector on my cordless Dolphin Liberty 300 and 400, and how do I set it?
- How do I get started with my Dolphin?
- What are the plastic wrappers around the white foam climbing rings on my Dolphin?
- How does the Liberty 600 charge?
- How do I get started with my Dolphin Skimmi?
- How long does my Skimmi take to fully charge, and how long does a full charge last?
- What settings should I use for my Dolphin Skimmi?
- How does the Skimmi navigate?
- What is a Dolphin pool cleaner and what makes it different?
- What do the LEDs on my Skimmi mean?
- My Dolphin came with fine filters. Are finer filters available for my Dolphin?
- How do I register my Dolphin's warranty?
- How do I connect to the MyDolphin Skimmi app?
- Why won't my Dolphin Skimmi connect to the MyDolphinSkimmi app?
- My Dolphin robot came with 2 sets of filters. Which filter should I use?
- Where do I find my Skimmi serial number?
- Why won't my Dolphin climb walls or move sideways on walls?
- What do the LEDs on my Liberty 600 mean?
- How do the features on the EON 100/120d work?
- How do I clean the impeller on the EON 100/120d?
- How do I remove the EON 100/120d from the pool?
- What do the LEDs on the EON 100/120d mean?
- What is the DebrisLock filter technology and how does it work?
- Why can't I pair my cordless robot with the Maytronics One app?
- How can I change the filter on my Wave90i?
- Why can’t I access all of the features on my Liberty power unit?
- How do I replace the side panel on the Nautilus CC Plus?
- What cleaning modes are included with the S2000?
- Can I swim while the Skimmi is cleaning the pool?
- Why is the Dolphin Skimmi hitting the pool walls?
- How does the EON 100/120d clean the steps and the sun ledge?
- Is the new S-Line only cosmetic, or does it change how the robot cleans?
- What's new about the M600?
- What cleaning modes are available on the EON 100/120d?
- How do I install the cable float on the Nautilus CC Plus?
- How does Dolphin EON deliver water that’s up to 4X clearer than competitors?
- How does Dolphin EON save you up to 20 hours per year on maintenance?
- Will my corded Dolphin clean the stairs?
- What cleaning modes are included with the S3000?
- Why doesn't Wi-Fi stay connected to the Maytronics One app?
- How do I get started with my Liberty 600?
- Why doesn't my cordless robot respond to the app while underwater?
- How do I open my pool for the season after winter?
- Why isn't the EON 100/120d cleaning the sun ledge and steps?
- Why won't my Dolphin robot start when the power supply works?
- Why won't my Dolphin finish a cycle, or why is the power supply light red?
- Why isn't my Dolphin power supply working properly?
- How do I connect my Dolphin to the MyDolphin app with Bluetooth?
- How do I connect my Dolphin to Wi-Fi with MyDolphin Plus?
- Why isn't the Clicker working with my cordless robot?
- Why is my Dolphin not responding or showing a communication error?
- My Dolphin is not working. Where can I send it for repair?
- How long is the warranty on my Dolphin?
- Why isn't the Skimmi charging in a sunny location?
- Why is my Dolphin Skimmi moving in jerks or making noise?
- Why is my Dolphin Skimmi beeping with a flashing red LED?
- How do I clean a jammed front paddlewheel on my Dolphin Skimmi?
- Why does my Dolphin Skimmi often stand still and clean for less time?
- My impeller is clogged. How do I clean it?
- Which Dolphin is best suited for my pool?
- Why is the cycle selector not working on Dolphin Liberty 300 and 400?
- What should I do if my Dolphin remote control isn't working?
- How can I remove something stuck in my Dolphin robot's tracks?
- Does my Dolphin come with cleaning modes?
- What should I do if my Dolphin gets stuck on the drain?
- Can I order replacement parts for my Dolphin and replace them myself?
- Why does my Dolphin keep missing part of the pool?
- Why does my Dolphin float instead of sinking to the bottom of the pool?
- Why won't my Dolphin Liberty finish its cycle with a red LED on the power unit?
- My Dolphin's filter is full. How do I clean it?
- Why is my Dolphin doing wheelies?
- Why does my Dolphin get stuck at the bottom or deep end of the pool?
- Why doesn't my Liberty climb the walls?
- Why isn't my Dolphin cleaning the pool properly?
- What should I do if my Dolphin's cable is twisted?
- How do I clean a clogged impeller on my Liberty?
- Is it safe to leave the power supply outside? What happens if there is a thunderstorm?
- What water conditions are recommended for my Dolphin?
- Why isn't the EON 100/120d climbing walls?
- What makes the EON 120d filtration system more advanced?
- Why isn't my EON 100/120d charging?
- What app features does the EON 100/120d include?
- How do I set the cleaning modes on the EON 100/120d?
- How do I set UltraRun on the EON 100/120d?
- How do I remove my Dolphin from the pool?
- How long can I leave my Dolphin in the pool?
- How does my Dolphin scan and move around the pool?
- What are the voltage requirements for the Dolphin power supply unit?
- Why can’t I access all the features on the power supply unit?
- What does the S2000 feature?
- What does the S3000 feature?
- How do the S1000/S2000/S3000 clean stairs and sun ledges?
- What’s new about the S-Line facelift?
- How can I schedule cleanings with the S2000 and S3000?
- How do I replace the climbing rings on my Dolphin brushes?
- Why isn't the S1000/S2000/3000 reaching the steps?
- How do I log in to the app using OTP?
- Where do I find the serial number of my Maytronics cleaner?
- How do I charge the EON 100/120d?
- How do I replace the side paddlewheel on my Skimmi?
- How do I replace the filter panels on my Dolphin robot?
- How do I set Eco Mode on my Liberty 600?
- What cleaning modes are available with my Liberty 600?
- How do I replace the brushes on my Dolphin robot?
- Can I add more than one Dolphin robot to the MyDolphin Plus app?
- What is Eco Mode on the Skimmi 300?
- What cleaning modes does the Skimmi 300 have?
- How do I replace the blue cable on my Dolphin robot?
- How do I replace the motor unit on my Dolphin?
- How do I replace the tracks on my Dolphin robot?
- How do I replace the filter panels on my EON?
- What filter options are available with the EON 100 and EON 120d?
- How do I install the DebrisLock filter and set up backwash?
- How do I test my pool water and use pH Plus if the pH is too low?
- What is pH Plus?
- Why is proper pH balance important, and how often should I test my pool water?
- Can pH Plus be used the same way in pools and spas?
- How do I properly store my Dolphin?
- How do I get started with my EON 100/120d?
- Will replacement parts work with both older S-Line models and the new S-line models?
- How do I use the Clicker with my cordless robot?
- How do I connect to the Maytronics One App for the first time?
- Which Dolphin app should I download for my robot?
- Why does my Dolphin's "full filter" light turn on when the filter isn't full?
- How do I replace the front paddlewheel on the Skimmi 300?
- How do I set Eco Mode or other cleaning modes on the Skimmi 300?
- How do I clean stuck paddlewheels on my Skimmi 300?
- How does the Skimmi 300 charge?
- What do the LEDs on my Skimmi 300 indicate?
- What features are available in the Maytronics One app for the Skimmi 300?
- How do I pair the Skimmi 300 with the Maytronics One app?
- How do I store my Skimmi in the off-season?
- How do I clean my Skimmi?
- What pool types is the Skimmi suitable for?
- What are the handles and floats on my Dolphin for?
- When should I use a clarifier?
- Why do I need a conditioner and clarifier for my pool or spa?
- What is pool alkalinity, what is the ideal range, and why is it important?
- What happens if pool alkalinity is too low or too high?
- What is pool alkalinity increaser, and when should I use it?
- How do I add alkalinity increaser, how much should I use, and how long should I wait to swim?
- How often should I test pool alkalinity, and should I adjust alkalinity or pH first?
- How do I know if my pool needs calcium hardness increaser, and when should I add it?
- What should I do before adding calcium hardness increaser, and how often should I test?
- What is calcium hardness increaser and what are the ideal levels for pools and spas?
- When should I avoid calcium hardness increaser, and what can high or low levels cause?
- Do pools and spas use the same calcium hardness increaser?
- Why isn't my EON 100/120d cleaning properly?
- Why is debris falling out of my robot when I remove it from the pool?
- What features are included with the Skimmi 300?
- Why can I no longer connect to the MyDolphin Plus app?
- What is the Dolphin Nautilus EON 120d cordless robotic pool cleaner?
- What size pool does the Dolphin Nautilus EON 120d cover?
- How long does the Dolphin Nautilus EON 120d run on a single charge?
- What is ClearPod?
- How does the ClearPod work?
- What are the benefits of using the ClearPod?
- How do I use the ClearPod?
- Can I leave the ClearPod installed all the time?
- How does the ClearPod improve water clarity?
- How do I install or replace the ClearPod on the EON?
- How often should I replace the ClearPod?
- How do I set or change the Homing Wall?
- Why isn't my EON behaving properly?
- Is the Niya Aquasweep S1 rechargeable?
- Can the Niya Aquasweep S1 handheld cordless pool vacuum cleaner reach tight corners?
- Is the Niya Aquasweep S1 a good handheld pool vacuum cleaner for spot cleaning?
- How long does the Niya Aquasweep S1 battery last?
- How Does Pick-Up Mode Work?
- Is the Dolphin Nautilus Titan Rated for Large Pools?
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