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Dolphin M400

Deluxe Class

The M400 provides highly efficient pool cleaning for pools up to 50ft in length. Advanced systems ensure accurate scanning for systematic coverage of floor, walls and water-line, leaving clean and hygienic water throughout.

Dolphin M400 Feature - Active Brushing
Active Brushing

Scrubs away algae and bacteria

CleverClean Technology

Advanced scanning ensures complete pool coverage in 2.5 hours or less

Easy Clean Filtration

Remove filter cartridges to simply rinse & reload.

Lightweight Design

Easy to lift and handle – only 24 pounds

FAQ

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  • Question
    Maytronics Dolphin International Export Warning!
    Answer
    ·         1. Warning if purchased for overseas use
    ·         1.1 All Maytronics products displayed on the www.maytronicsus.com   website (Maytronics Products) are specifically designed and modified to comply with North American laws and standards.
    ·         1.2 Given that the laws and standards that apply to goods and services can vary quite significantly in different jurisdictions, Maytronics US has ensured that all necessary modifications have been made to the Maytronics Products such that they meet North America’s strict product and safety standards.
    ·         1.3 If you have purchased for export any product with a ‘Maytronics’ brand or similar to any of the Maytronics products displayed on www.maytronicsus.com for a country outside North America,  please be aware that that product is not supplied by Maytronics US and may not comply with other countries laws and standards. This may also affect the validity of any product liability insurances you may have in place.
    ·         1.4 If that is the case, Maytronics US has no obligation to honor any warranty or to repair or replace your product for free.
    ·         2. Liability
    ·         2.1 To the maximum extent permitted by law, we (MaytronicsUS) are not liable for any loss, damage, cost, expense or liability (whether direct, indirect, consequential, exemplary, special, punitive or otherwise) however caused, suffered by any person (including you) in connection with the purchase, manufacture or exportation of Maytronics-branded products to jurisdictions outside North America (whether in relation to supply, installation, operation, failure, use or misuse or otherwise).
  • Question
    What is the purpose of the floats on the handle of the cleaner?
    Answer
    The floats are on the arm of the Dolphin. The floats are used to assist the buoyancy of the cleaner when turning on the bottom of the pool and scrubbing the waterline. To adjust the buoyancy, slide the float out on one side of the Dolphin. If the cleaner continues to have issues turning or scrubbing the waterline, pull the opposite float outward as well.
  • Question
    What are the voltage requirements for the Dolphin power supply?
    Answer
    The Dolphin requires a standard 120v outlet for power.
  • Question
    What are the ideal operating temperatures for my Dolphin cleaner?
    Answer
    Dolphin robotic pool cleaners are best used in temperatures between 43 and 93 degrees.
  • Question
    Should I remove the Styrofoam from the motor unit?
    Answer
    No, do not remove, this is not packing material. These help the Dolphin with buoyancy within the pool.
  • Question
    My white climbing rings are dented, are they damaged?
    Answer
    No, the indentions on the rings are normal and due to the product settling during shipping. The rings will reshape once saturated with water.
  • Question
    Is my Dolphin "remote controllable"?
    Answer
    Yes, this Maytronics Dolphin robotic pool cleaner has access to the Manual Drive (joystick) via the MyDolphin Application. Please visit the App store via your Smart Phone and search keyword Maytronics. Download the App from the App store, launch the app and follow the prompts. Compatibility: Android version 4.3 or later; Apple iPhone 4S or higher/ starting at version 6.0 operating system. Requires connection with 3G/4G network with a minimum of 60% signal strength. Bluetooth feature must be enabled on the phone.
  • Question
    Does my Dolphin have Bluetooth Capability?
    Answer
    Yes, this Dolphin robotic pool cleaner has Bluetooth capability.
  • Question
    Can you use this cleaner in an in-ground pool?
    Answer
    Yes. The this Dolphin robotic pool cleaner is designed for the in-ground pool application.
  • Question
    Can you use Dolphin cleaners in hot tubs or ponds, etc.?
    Answer
    No, the Dolphin is not designed to clean hot tubs or ponds.
  • Question
    Can you leave the power supply out in the weather?
    Answer
    The power supply is water resistant but not waterproof. Please cover the power supply if inclement weather approaches. Do not leave the power supply in standing water. Do not allow the power supply to be submerged in the pool.
  • Question
    Can you leave the Dolphin in the Water?
    Answer
    It is safe to leave your Dolphin cleaner in the water when not in use. However, (when adding chemicals to the pool) please remove the Dolphin until the proper chlorine and PH balance are obtained.
  • Question
    Can I use my Dolphin pool cleaner with an extension cord or surge protector?
    Answer

    The Dolphin is not designed to be used with an extension cord or surge protector.

  • Question
    Can I use my Dolphin in an Infinity pool?
    Answer
    Not all Dolphins are suitable for infinity pools, please contact Maytronics directly or your local Dolphin retailer for information regarding the models that are suitable for this pool type.
  • Question
    Can I use a Dolphin pool cleaner with my fiberglass or vinyl pool surface?
    Answer
    Yes, the Dolphin is suitable to use in fiberglass or Vinyl pool surfaces.
  • Question
    Can I purchase a Dolphin pool cleaner online with warranty service?
    Answer
    Maytronics offers several pool cleaners both via brick and mortar stores and via internet dealers that include warranty rights. Please refer to the ‘Residential pools’ section of our website for our product listings.
  • Question
    Can I purchase a Dolphin pool cleaner and use it abroad?
    Answer

    Dolphin pool cleaners purchased in the United States must be operated in North America in order to retain the warranty rights. Using any Dolphin pool cleaner outside of North America (that is purchased in the US) voids the warranty service agreement.

  • Question
    Can I leave the power supply unit outside in the elements?
    Answer
    The power supply unit is an electrical device which must be protected from the elements. When in use the unit needs to remain dry. Do not submerge the power supply unit in water as this will damage the internal components.

Customer Reviews

Dolphin M400 Robotic Pool Cleaner

Based on 56 reviews

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4.54 out of 5 stars

59 reviews

Let us know what you think...

What others are saying

  1. One person found this helpful
    Rick Wojan

    5 out of 5 M400 Review

    Rick Wojan

    After researching all of the different pool cleaners I bought the M400 and couldn’t be happier – it does a great job of completely cleaning the pool – floor, walls and steps. It’s quite easy to operate and saves me hours of time during the week and on weekends. On top of this their Customer Service is phenomenal and a pleasure to work with – they take the time to call and email back promptly (thanks Mandy and Tamara) to answer a request. Purchase a Dolphin and save yourself time, money and researching other manufacturers as the M400 is top notch in every respect. Then get yourself a proper beverage and watch it work.

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  2. Micah

    3 out of 5 Could be better

    Micah

    Unit consistently gets stuck trying to go up a corner stair and doesn’t do anything until I remove it. Not sure why but would be good if it actually tried to get itself off. Means I can’t just leave it for a few hours and then come back. Has happened every time I have used the machine (which is only twice, but still, 2 for 2).

    M400 does not climb any of our stairs at all and does not get up to the fairly deep tanning ledge (which I sort of expected but still a bit disappointing because the steps are pretty wide and it doesn’t even try).

    M400 does not climb over a small safety ledge around the pool so does not clean the waterline at all. Would have been pretty easy for it to just try to keep going but it doesn’t. Seems like it was not designed or programmed to try to climb over anything.

    Finally, I just found out that Maytronics seems to sell a brush specifically designed for fiberglass pools, which would have been nice to know on the website (and should have been an option as part of the base set). No clue where to find it or how much it costs because there are no details on Maytronics’ website. Just going on scraps from various forums.

    Will use it, but knowing what I know now I would have tried another product or brand. Some of these issues might not be any better, but there would at least be a chance.

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  3. Doug Messina

    5 out of 5 The Best Robot

    Doug Messina

    Did alot of research before purchasing the M400. I previously had an Aquabot T4 which I thought was good, that is until I started using the M400. The M400 performs circles around the Aquabot( which was the best rated and most expensive consumer robot at the time) and addresses the inefficiency of the T4. First, the power cord does not tangle. The interchangeable filtration cartridges collect more debris and are easier to clean. The M400 is much easier to operate and ca be set for up to 3-hours. Does a better job of cleaning walls, however it can’t negotiate steps very well. The only drawback is the weight. It is heavy, especially when removing from the water, however, considering the performance, it is completely acceptable. I am in my second year of operation and would recommend the M400 to everyone who wants the best consumer level robotic pool cleaner available.

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  4. Jim Reece

    1 out of 5 High Price Manual Cleaner with Marginal Results

    Jim Reece

    I purchased the M-400 robotic cleaner about a month ago. So this review is after 1 month of use. I paid over $1,300 for this unit, and so I expected a lot more than I got. First, the good thing is that it cleans the floor of my pool well. I like the dual rotor action, the two different filter options (mesh and pleated) and I like the cart with rollers. However, it does a poor job cleaning the walls and steps of my pool. And I have never seen it try to clean the skum line. I also have a tanning ledge that is about 1′ deep and the M-400 won’t even attempt to go there. I assumed that a $1,300+ cleaner today would be wi-fi compatible and have scheduling features. This cleaner has neither. I even called Maytronics to verify I was not missing something. It does have blue tooth, but that’s dumb because you have to be within a few feet of the unit for your phone to connect. And since it’s a basic on/off unit, the only thing you can do is turn it on. And since you have to be within a few feet for blue tooth to work, it’s much simpler to just press the button on the power unit. Not having any schedule features is a huge negative too. So when I am on vacation, there is no way for the M-400 to clean my pool unless I have someone drop by and manually start it. My pool pumps, sheer descent, deck jets and even my irrigation system is wi-fi compatible with scheduling features, so I can automate their function and operate them from my phone or a web site from anywhere in the world. Had I known the M-400 would not clean my walls very well and that it was a basic on/off cleaner, I would have saved $1,000 and bought a much cheaper cleaner. The M-400 is a huge rip off.

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  5. NIck Jacob

    5 out of 5 Very Reliable

    NIck Jacob

    We have had our unit for 4 years with no problems. My only complaint is that the set of fine filters we bought have come apart from the plastic frame at the bottom. A Friend with the same unit had this problem and she has glued hers together, we need to do the same.

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  6. One person found this helpful
    John A.

    3 out of 5 Buyers beware!!!

    John A.

    Buyers beware!!!! Three years ago doing a lot of research I bought a M400 Dolphin. It has been in the shop every year since. The first year the brush on the bottom were loosing its knobs and had to be replaced under warranty. The second year the cord from the cart to the unit in the pool kept tangling up and pulling the cart from the wall. The swivel was not letting the cord swivel also replaced under warranty. Now this year. Took the Dolphin out of the pool house plugged it in nothing. Circuit breaker to unit was checked OK. Got my multimeter out 119.9 volts at receptacle. Took cord to supply unit checked voltage 119.9. Took to pool place where I bought it they checked it out motherboard was fried. $484.00 not in warranty out of warranty by one month. Worked fine last year when I put it up. Was in pool house all winter. I take care of my stuff but am sure disappointed with this unit.

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Dolphin M400

Deluxe Class
Model #99991046-USBLE

Dolphin M400 Robotic Pool Cleaner
Cleaning CoverageFloors, Walls, Waterline
Weekly TimerYes
Caddy IncludedIncluded
Product Weight (robot only)24 lbs
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