Dolphin Diagnostic Advantage Pool Cleaner (DL2019) - 9301ADV


Model # 9301ADV

By Dolphin

  4.63 Average  



Model # 9301ADV

Dimensions 3.5" L x 2.5" W x 1.25" D

Alternate Part #'s 190058, 9999301, MAY-20-1000

Product Description

The Dolphin Diagnostic Advantage

The Dolphin Pool Cleaner is the world's first and best selling robotic pool cleaner.  And after 25 years of scrubbing pools clean, it still leads the industry with its advanced electronics, rugged construction, superior cleaning performance, and unequalled service record.  The Dolphin pool cleaner scrubs and vacuums the pool floor, walls and waterline and microfilters the pool water - it's like adding another filter to your pool!  The Dolphin's reusable filter bag is designed with the optimum porosity to catch the smallest debris yet avoid clogging. It operates with it's own pump and filter system which avoids the wear and tear on your pool pump and filter caused by water-powered cleaners. In fact, the Dolphin Diagnostic Pool Cleaner saves you up to 50% on electricity and backwashing costs and up to 30% on chemical costs!  The Dolphin's water-cooled motors (no oil to leak) are guaranteed for 24 months.  Its extra long 50 ft. self-floating cord is attached to a weatherproof 24 volt transformer which is ETL listed for outdoor use. No installation is required – just plug it in.  It even has a built-in 6 hour auto shutoff and advanced, self-diagnostic software.

dolphing pool cleaner
The Dolphin Pool Cleaner Climbs up your Pool Walls

  • Recommended for Pools up to 20' x 40'
  • Scrubs and Vacuums Entire Pool Floor, Walls and Waterline
  • Operates Independently of Pool Pump and Filter
  • Vacuums and Microfilters Water - Like Adding a DE Filter to Pool
  • The Dolphin Pool Cleaner is a Proven Product - Over 25 Years in the Field
  • Saves up to 50% on Electricity and Backwashing Costs
  • Saves up to 30% on Chemical Costs
  • No Installation Required
  • Self-Monitoring Diagnostic Software
  • Exclusive Corner Cleaning Movement
  • The Dolphin Pool Celaner has No Drive Belt to Break
  • Air Sensor - Suitable for Beach-Entry Pools

dolphin pool cleaner

  • Automatic Shut-Off After 6 Hours
  • Self-Contained, 1200 sq. inch Reusable Filter Bag - Microfilters Contaminants
  • 24-Month Warranty on Motors/One Year Full Warranty
  • 50 ' Self-Floating Cable with Kevlar ™ Strengthener
  • Water-Cooled Motors, No Oil to Leak
  • Transformer - ETL Listed 115V AC-250 Watts in Weatherproof casing, 24 Volts at Unit
  • UNIT WEIGHT: 21 lbs Without Cable or Transformer
    CARTON WEIGHT: 45 lbs
    CARTON SIZE: 23.5" x 19.5" x 14" (UPS-able)

Note: The Dolphin Pool Cleaner was formerly known as the Dolphin 2001 Diagnostic Cleaner and is currently referred to as the Dolphin Diagnostic Advantage, DL2019. While some of our suppliers' inventory still includes the Dolphin 2001 labeling, please understand that it is the exact same cleaner as the current DL2019. There is NO difference in the Dolphin Pool Cleaner product features or performance.

Click here for more Dolphin Pool Cleaner

Product Specifications

Cord Length:
50 ft.
Caddy Included:
Climbs Walls:
Cleaning Cycle:
6 hrs
Max Pool Size:
20 x 40 ft.
Scrubs Waterline:
Remote Included:

?     Asked on 11/28/2020 by

This can be used in above ground pool?

A  Answered on 12/21/2020 by InyoPools Product Specialist Michelle B.

Hello,Thank you for contacting Inyopool products!You would be able to use this in your above ground pool. 

?     Asked on 7/13/2019 by

I ran my dolphin advantage just fine a few days ago but went to put it in today and it starts to work then stops and then it won’t work again this has happened a couple times what could be the problem any help would be great

A  Answered on 7/18/2019 by InyoPools Product Specialist Matt S.

I suggest reading and trying out some of the techniques mentioned in this guide: How to Troubleshoot a Dolphin Pool Cleaner

?     Asked on 7/9/2019 by kim

Need the transformer for the power supply and the cord or if you have a power supply for this unit we would buy it

A  Answered on 7/11/2019 by InyoPools Product Specialist Lennox H.

Hi, Kim. The replacement Power Supply is P/N 9995670-US-ASSY. You will also need to purchase the Power Supply Power Cord 7' - 5898412LF.

?     Asked on 4/23/2019 by John

I this for an above ground pool or an in ground pool?

A  Answered on 4/23/2019 by InyoPools Product Specialist Lennox H.

Hi, John. This unit was meant for inground pools.

  • Commented on 4/23/2019 by Product Owner

    Will it work in a round above ground pool without destroying the vinyl liner?

    • Commented on 4/25/2019 by InyoPools Product Specialist Lennox H.

      John. You will need to use the Wonder Brush - 6101610.    

?     Asked on 7/31/2018 by dave m.

i have this unit.... it still works, however, the bottom unit that holds the bag, has a small problem... being one of the flaps is broken.. the small plastic protruding pin has snapped off. i've looked high and low for this replacement part, and no luck so far. i do have a pic of the bottom unit, but not sure how to display it here. it has a central opening with 2 rectangular ports. thanks!

A  Answered on 7/31/2018 by InyoPools Product Specialist Lennox H.

Hi, Dave M. You will need to replace the Bottom Lid & Support Assy (dl-9995480) - 9995550.

?     Asked on 5/24/2018 by Ricardo

The yellow track keeps coming off one of the wheels, is there a solution for that? Also, whats a current model that is similar to this model but new?

A  Answered on 5/26/2018 by InyoPools Product Specialist Lennox H.

Hi, Ricardo. First, inspect the tracks, pulley gears and guide wheel for wearing. If they're bad then you'll need to replace them. See our selection of Robotic Pool Cleaners for replacement options. 

?     Asked on 6/8/2017 by Chuck Morrell

I am changing tho plug on the cleaner that goes to the power supply.. What pins are used?

A  Answered on 8/9/2017 by InyoPools Product Specialist Alex V.

Chuck, If you purchased the DIY version of the cord, you can use this how to guide for reference. 

?     Asked on 5/31/2017 by Rose Welch

I bought this from a pool store that said this could be used on above ground pool. I have not had any problems. Are there danger to my liner for using this vacuum?

A  Answered on 6/6/2017 by InyoPools Product Specialist Lennox H.

Hi, Rose. This cleaner is not meant to be used in above ground pools. It will try to climb the walls and will require a special brush for a vinyl liner.

?     Asked on 5/29/2017 by Joann Dalessio

Why doesn't my dolphin. diagnostic cleaner climb the walls anymore it tries but can't get up. Can I use disposable bags instead of the cloth bags.. Thank you It is not the advantage

A  Answered on 6/4/2017 by InyoPools Product Specialist Lennox H.

Hi, Joann. The unit does not have enough suction to make it up the wall. That can be caused by a dirty bag or clogged impeller. You can use the Disposable Bag - 9991440-ASSY.

?     Asked on 4/4/2017 by

a would like a self contain unit that would remove dirt and d.e.

A  Answered on 4/6/2017 by InyoPools Product Specialist Scott W.

I would recommend the Hayward Tiger Shark, part number 9950.

?     Asked on 11/11/2016 by Tina

I would need new Rubber Brushes (the two magenta looking role brushes). Where could I get them?

A  Answered on 11/14/2016 by InyoPools Product Specialist Stacey M.

Hello Tina, Pvc Brush, Diag, Magenta, SINGLE (6101604) is what I think you are looking for. This part goes to Maytronics Dolphin Advantage Parts.

?     Asked on 5/26/2016 by Danny

I out the cleaner in the pool and it runs for a few months then stop. What can be wrong ?

A  Answered on 5/29/2016 by InyoPools Product Specialist Lennox H.

Hi Danny, The unit's motor, cord or power supply could be bad. I would recommend contacting Maytronics at 1-888-365-7446 to troubleshoot your unit.

?     Asked on 7/12/2015 by Christopher Jones

The last time we used our Dolphin Diagnostic Advantage cleaner, the cord became caught in the wheels. The robot now does not move at all. Have we burned out the motor. Can the motor be replaced or repaired.

A  Answered on 7/14/2015 by InyoPools Product Specialist Lennox H.

Hi Christopher, You will have to contact Maytronics at 1.888.365.7446 to see about a replacement motor.

?     Asked on 5/22/2015 by Lucy

if this is no longer available, which model is most similar? I have one but it is getting old so I need a new one.

A  Answered on 5/22/2015 by InyoPools Product Specialist Patrick P.

Hi Lucy, I would suggest the Dolphin Dynamic W/ Remote or the AquaBot Pro Cleaner as the two most similar cleaners to the Dolphin Diagnostic Advantage.

?     Asked on 3/21/2015 by Bubba

Is the power supply that it plugs in for electrical power available?

A  Answered on 3/23/2015 by InyoPools Product Specialist Robert M.

Hello Bubba - Part number 3295-192 is the correct power supply for the Dolphin Advantage model.

?     Asked on 2/1/2012 by Guest

I need a part for my Dolphin pool cleaner but I don't see it on the parts breakdown. Is there still a chance you may still have it?

A  Answered on 2/1/2012 by InyoPools Product Specialist Patrick P.

The manufacturer which is Maytronics, does not offer all parts for sale. If you don't see a part on the breakdown you can give us a call. For parts that they do not consider "DIY (do it yourself), you will need to contact them and send in the cleaner for repair.

?     Asked on 1/23/2012 by Guest

Can this cleaner climb up the walls of the pool and keep them clean?

A  Answered on 1/23/2012 by InyoPools Product Specialist Patrick P.

Yes this cleaner is a "wall climber". It will clean the floors and climb the walls up to the water line. 

?     Asked on 9/4/2008 by Guest

Will the Dolphin caddy fit all of the Dolphin machines?

A  Answered on 9/4/2008 by InyoPools Product Specialist Patrick P.

According to the manufacturer, the same caddy is used for all of the Dolphin cleaners purchased over the internet. The only  exception might be some of the commercial models that come with their own caddy.

?     Asked on 7/10/2007 by Guest

Please explain the difference between the standard dolphin replacement filter bags, disposable filter bags, how often to replace, can you just pull out and wash? Also I noticed you sell replacement scrubber brushes, how do these need to be replaced? Is this machine hard on a vinyl liner?

A  Answered on 7/10/2007 by InyoPools Product Specialist Patrick P.

The standard dolphin replacement filter bags are designed to handle finer debris like sand and silt and these bags typically lasts 3 years. The standard bags can be washed in a washing machine using no detergent. The disposable filter bags are designed to handle larger debris like leaves and twigs and are recommended when opening the pool in the spring or closing the pool in the fall. The disposable bags last 2-3 cleanings and may be purchased through this link The Dolphin robot pool cleaners are designed to work on vinyl liner, gunite or fiberglass pools and the scrubber brushes typically last 3-5 years. The manufacture recommends cleaning the scrubber brush periodically with a mild dish detergent to prolong the life of the brush.

?     Asked on 5/2/2007 by Guest

Is it safe to swim while this unit is in use?

A  Answered on 5/2/2007 by InyoPools Product Specialist Patrick P.

You cannot swim nor run the pump/filter while this unit is in use.  The reason behind this is that the slightest wave or hit could knock the unit off of the wall while it's climbing.  The unit can sit in the pool while turned off, and waves won't bother it, but it cannot be used while the pool is occupied or the pump/filter are running.

?     Asked on 4/4/2007 by Guest

I was wanting to buy a Dolphin Diagnostic Robotic Cleaner. Some I have been looking have a 65 foot cord and other only a 50 foot cord. I need the longer one (65) but I only saw you had a 50 foot one. Can you help me or do you only sell on with the 50 foot cord length? Thanks

A  Answered on 4/4/2007 by InyoPools Product Specialist Patrick P.

About 2 years ago Smart Pool made changes to this pool cleaner, one of the changes they made was reducing the cord length from 65' down to 50' We only have the new models available with the 50' cord. If you can get by with a 55' cord we would recommend the Tiger Shark pool cleaner which you may view or purchase through this link The nice thing about the Tiger Shark is that it uses cartridges instead of a bag. All you need to do is remove the cartridges from the bottom of the machine, then rinse and clean with a garden hose!

?     Asked on 10/17/2006 by Guest

Does this unit come with the remote control or if not, will it work with a remote?

A  Answered on 10/17/2006 by InyoPools Product Specialist Patrick P.

The Dolphin Diagnostic does not come with a remote.  According to the manufacturer, the DL2019 model cannot be used with a remote control.  The Dolphin Dynamic (2002) comes with a remote and caddy.  This can be seen on our web site at:

?     Asked on 8/18/2006 by Guest

Can this cleaner be used in a pool with a liner?

A  Answered on 8/18/2006 by InyoPools Product Specialist Patrick P.

Yes, the Dolphin Automatic Pool Cleaner (DL2019) can be used in a pool with a vinyl liner.

?     Asked on 7/24/2006 by Guest

Can I use this cleaner on an inground vinyl pool?

A  Answered on 7/24/2006 by InyoPools Product Specialist Patrick P.

Yes.  This cleaner works with inground vinyl, fiberglass, concrete, and gunite swimming pools

?     Asked on 7/10/2006 by Guest

Our pool is a group of three overlapping or intersecting rectangles. There are inside corners with 90 degree turns as well as outside corners with 270 degree turns. Will the Dolphin Diagnostic, NE250 navigate the outside 270 degree turns?

A  Answered on 7/10/2006 by InyoPools Product Specialist Patrick P.

The swimming pool does not have to be rectangular or round.  It can be any shape and the Dolphin will navigate around the swimming pool. It may favor some parts of your pool, but should clean around the entire swimming pool.

?     Asked on 7/7/2006 by Guest

I've had a Polaris cleaner for 15 years and need to replace it. How does it compare to the NE250? Can I use the same booster motor?

A  Answered on 7/7/2006 by InyoPools Product Specialist Patrick P.

The NE250 is a robotic cleaner. It's a little different than the Polaris, but is one of the more popular cleaners on the market. It does not require a booster pump, but rather sucks everything into its own internal filter bag. The bag needs to be emptied periodically, similar to a household vacuum. The Dolphin cleaner will also climb up the sides of your pool unlike the Polaris pressure pool cleaner. We recommend the Dolphin over the older Polaris models.

?     Asked on 6/23/2006 by Guest

Does the NE250 work with aboveground pools?

A  Answered on 6/23/2006 by InyoPools Product Specialist Patrick P.

No, it does not. For aboveground pools, we recommend the Robo-kleen aboveground pool cleaner. To view it click on this link:

?     Asked on 6/10/2006 by Guest

Will this unit work in a concrete or gunite pool?

A  Answered on 6/10/2006 by InyoPools Product Specialist Patrick P.


?     Asked on 6/4/2006 by Guest

Does the unit come with the caddy and the PVC brush for in-ground plaster/masonite/concrete pools?

A  Answered on 6/4/2006 by InyoPools Product Specialist Patrick P.

The NE250 (DL2019) does include the brush.  The caddy is sold separately and can be seen on our web site at Dolphin Caddy


Review Summary

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