Maytronics Dolphin Repair And Troubleshooting

Maytronics Dolphin repair is very limited. Limited to the outside of your Dolphin Automatic Pool Cleaner.


Help for your Dolphin has arrived! Aquaquality Pools and Spas Inc, is now a dealer and service provider for Dolphin Pool Cleaners and Tiger Shark Pool Cleaners. 1-866-876-8643



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Maytronics Dolphin Troubleshooting

Dolphin Diagnostic Transformer Repair

Dolphin Diagnostic Parts: Cable Testing and Replacement

Maytronics Dolphin Diagnostic User's Manual (opens new window)


Forget about replacing the pump and motor. Unless you have a spare robot for parts, internal maytronics parts are impossible to get. Your dealer will send your robot out for repair.

I have several photos including a photo of the inside of the motor housing.



Maytronics Dolphin Drive Track Removal

1. Remove the bottom plate with bag.

2. With the machine upside down, remove the screws holding the debris shield and remove the shield.

Dolphin Bottom Plate Removed


Maytronics Dolphin Debris Shield Removal


3. Remove the screws holding the side plate.

4. Gently pry off the sideplate. It may need much persuasion due to dirt buildup on the sideplate pegs that slide into the body.

Maytronics Dolphin Sideplate Removal


Maytronics Dolphon Sideplate Removed


Be sure to clean dirt, debris and other contaminants from the parts that slide into each other.

5. Remove the drive track. The system is direct drive with the drive gear in the center. Drive gear and pulleys slide off the spindles.


FOR THE CURIOUS I opened a motor compartment to satisfy the question of what is in it. No instructions are included to put it back together because parts are unavailable.

The motor assembly inside the robot body is held in place by screws accessible once the sideplates are removed. Inside the box is the pump, drive motor, circuit board and a counterweight to offset the buoyancy of the air filled box.

Opening this box creates the challenge of airtight reassembly. The gasket must be re-used and I suggest a good coating of silicone to keep it pliable and easier to slide into position.

Notice the motors have little direct cooling contact with the water.




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What Other Visitors Have Said

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Resistor Value for R43 
Hello! I am trying to find out the resistance value, tolerance, and wattage for the resistor labeled R43 (in the box labeled J3) for the Dolphin 2410012LF …

Goggles stuck behind the wheels of a Dolphin DB-3 
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Where to purchase spare parts? 
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Robo stops due to moisture in motor compartment 
Robo stops due to moisture in motor compartment. How to open and dry motors? ADMIN REPLY: How do you know there's a moisture problem if you have not …

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My Dolphin power switch/breaker blows immediately 
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Dolphin Cleaner Won't Work Move. sand in motor box 
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My Dolphin won't run for more than 30-60 seconds! 
This seems to be a common problem, judging by other comments posted here. I have a Dolphin Dynamic pool cleaner (about $1800 at Leslie's Pool Supply). …

Dolphin Runs Intermittently. 
When I turn it on the green lights come on for a couple of seconds and then goes off. The unit itself runs and pumps for a couple of seconds and then stops. …

MaytronicsUS Support 
OK, as tis the season to go swimming, i will advise this website of the following....please delete and excuse all previous editions of technical help as …

Dolphin Power Supply Blowing the fuse 
Do you have any sugguestions, my transformer immediately blows fuses when turned on. The cleaner is not plugged in. There are no signs of damage inside …

Dolphin has developed an attachment to a single 4' strip 
I was hoping to find that someone else had experienced my same problem - but it doesn't appear so. My Dolphin has no "functionality" issues: it cleans …

Remote Dolphin dynamic 2002 
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MaytronicsUS Service Center 
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Dolphin Diagnostic Rip Off 
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Dolphin Pool Cleaner Stops running after 4 cycles 
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DOLPHIN DIAGNOSTIC ADVANTAGE QUESTION 
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Dolphin Diagnostic Easy Repair 
I brought my cleaner out a few weeks ago after being stored since last fall. I put it in my pool and it went a little forward and back and stopped moving. …

Dolphin Cable is always twisted 
My line is always tangled in knots , how do you keep it straight ? ADMIN REPLY:This topic is covered on the site. To recap..ALWAYS re-coil the cable …

Dolphin Diagostic help? 
I currently own Dolphin Diagnostic Advantage Robotic Pool Cleaner, and when I turn system on, the wheels spin for about 2-4 seconds then turns back off. …

Water in Maytronics Dolphin Motor Box 
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Dolphin Filter Screen just crumbled. 
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someone should design and bulid a new and improved PC board for Dolphin Pool Cleaners 
I own two dolphin advantage cleaners and one of them is just like everybody else: moves two feet and shuts down. I got a idea before i crack it open, i …

Dolphin cord into power supply 
I tripped over the cord and pulled it out of the screw in connector for the power supply. There are 4 slots numbered 1 to 4 on the screw in connector. …

Dolphin Diagnostic Advantage Robotic Pool Cleaner 
I currently own Dolphin Diagnostic Advantage Robotic Pool Cleaner, and when I turn system on, the wheels spin for about 2-4 seconds then turns back off. …

Dolphin Pool Cleaner unit just floats 
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dolphin repair 
Is there anywhere I can take my pool cleaner to be repaired in the NJ/NY area?

Dolphin motor works for 2-4 seconds and stops 
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Dolphin Tracks 
Where can I purchase new tracks?

Dolphin Pool Cleaner 
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Dolphin Pool Cleaner Stopped Working 
When I turn the Dolphin on it will go forward for a few feet then reverse a few feet and quit all together

Dolphin 2001  
Hello, I'm looking for the drawing of the PCB card of the Dolphin 2001 (not the diagnostic) Please send me a picture. The number on the motor …

Dolphin motor repair 
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Dolphin cord 
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Dolphin Diagnostic failure 
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Replacing the Connector Plug to Power Supply 
Apparently the black wire in the connector from the blue cord in the connector to the power supply is loose. How do I open the plug and remove the casing …

my dolphin 2002 dynamics plus problem. 
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My Dolphin Diagnostic keeps cleaning in the same section of the pool 
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Dolphin Diagnostic Pumps Water, Won't Move 
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Dolphin Diagnostics shuts down after 10 miutes.  
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My dolphin goes 1 ft one way and then one ft the other, then stops! Help???? Not rated yet
My dolphin goes 1 ft one way and then one ft the other, then stops! Help????

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My dolphin pool cleaner wont sink to the bottom of pool just floats, unit is working just floats.

How do you repair the plug portion that goes into the power supply? Not rated yet
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Maytronics circuit board repair Not rated yet
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Doesn't seem to get to the corners in our pool. ADMIN REPLY: This is a problem common to many robots. Simply brush debris out of the corners.

DOLPHIN MOTOR Not rated yet
I am asking if you know of anyone who rebuilds these motors? I like these cleaners, but I can not keep buying new motors. PLEASE let me know if anyone …

PISSED OFF Dolphin pool cleaner owner Not rated yet
Can't find a new cord. I guess thats how you sell more expensive pool cleaners. I think it wold be cheaper to hire a pool guy. Oh buy the way it's a DOLPHIN. …

Dolphin Pool Cleaner Motor problem:  Not rated yet
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Dolphin Electronic Card Fuse Not rated yet
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Dolphin Cleaner Stopped Working Not rated yet
my dolphin cleaner stopped working i have checked the power supply and get only 5 volts output there is a sensor connection. what is this for. and …

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