Maytronics Dolphin repair is very limited. Limited to the outside of your Dolphin Automatic Pool Cleaner.
I have several photos including a photo of the inside of the motor housing.
1. Remove the bottom plate with bag.
2. With the machine upside down, remove the screws holding the debris shield and remove the shield.
4. Gently pry off the sideplate. It may need much persuasion due to dirt buildup on the sideplate pegs that slide into the body.
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.
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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Click below to see contributions from other visitors to this page...
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





Hello,
I bought a second hand Dolphin dynamic 2002, after I put in new penlites in the remote it won't work > i opened the complete cover and everything ...
MaytronicsUS Service Center





ADMIN NOTE : Many complaints about no response from Maytronics.
Please visit DOLPHIN POOL SUPPLY I have met the owner and he is motivated. Please ...
Dolphin Diagnostic Rip Off





I purchased a Dolphin Diagnostic Advantage pool cleaner 5 years ago, the motor has quit working and I was told by the service center that they want $350....
Dolphin Pool Cleaner Stops running after 4 cycles





My Dolphin runs for exactly 4 short cycles and then shuts off. I seems like it needs to be reprogrammed. Any suggestions to reload firmware? Thanks ...
DOLPHIN DIAGNOSTIC ADVANTAGE QUESTION





Hello !
I have the Maytronics DOLPHIN DIAGNOSTIC ADVANTAGE year 2009 bought on the USA directly.
he lift on the pool-wall but when arrive on the waterline ...
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....
Dolphin Filter Screen just crumbled.





The Dolphin Diagnostic Advantage has run beautifully for three seasons. There are issues with it getting stuck on steps and pulling a "sucking face plant"...
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





My unit is not moving, and had intermittent times of moving but now has water coming out the top but nothing is happening.
I have tried moving the rollers ...
dophin 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





I need some clue how to fix it
szajnbrum@hotmail.com
Dolphin Tracks





Where can I purchase new tracks?
Dolphin Pool Cleaner





same type cleaner as above. removed motor package but did not open case yet. took off propeller and washer. turned unit on & runs 5 seconds to left then ...
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





Dolphin's motors are very expensive, so is a rebuilt as far as you can find them.
However most of the time the motors can be repaired. The spi seals ...
Dolphin pump motor rotation





pump motor stopped working. opened motor box found moisture and dried with compressed air. tested for motor operation - impeller now works again, re-assembled ...
Dolphin cord





My dolphin Diagnostic robot stopped working - I took it apart and traced the problem to the cord where it comes into the Dolphin unit - the cord was shorting....
Dolphin Diagnostic failure





I have a bad motor driver board. The box is dry, the 22V and 24V motors are good. The driver IC for the brush roller motor blew up and took out the 11uf ...
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.





When i start my dolphin it’s goes for 1 minute forward and then when he change direction only one side is rolling for some seconds and then it's stop.
Then ...
My Dolphin Diagnostic keeps cleaning in the same section of the pool





My Dolphin Diagnostic keeps cleaning in the same section of the pool - the deep end. To get it to clean the shallow end I have to pull it by the electrical ...
dolphin commander problem





it is about three years old and looks in very good condition, has not been misused. for the last few days it starts for 15seconds or so and I tried with ...
Dolphin Diagnostic Pumps Water, Won't Move





My Dolphin Diagnostic stopped moving, though the water is still pumping out. I took it out of the pool and turned it on its back to perform the diagnostic ...
Dolphin Diagnostics shuts down after 10 miutes.





Dolphin Diagnostics shuts down after 10 minutes. Resetting makes it work for another 10 mins and then it shuts down again.
New Dolphin Pool Cleaner Questions





I just bought my first pool cleaner. I went with the Dolphin based on my research it seemed to be an good choice. I was wondering about the nasty bag.. I ...
First start of season. Dolphin Won't Start
Not rated yet
I put the unit in my pool and when I pressed the "ON" button, the button "lit" and there was a little buzz and the light on the button clicked off. I checked ...
Belt keeps slipping off the trackr
Not rated yet
When the machine is put in the water after about 15 minutes the track comes off the wheels. What can I do to fix this problem.
ADMIN REPLY First ...
PANNE CLASSIQUE DU DOLPHIN
Not rated yet
Bonjour
J'ai 2 blocs moteur qui ont le même problème.
A l'allumage, le moteur d'entrainement marche dans un sens puis s'arrete, redémarre dans l'autre ...
Dolphin Diagnostic Reaches Water Line then Stalls
Not rated yet
Submerge the unit with handle set in 3 or 4 position. Turn it on. The unit takes off, fan propelling, cleaning, climbs first wall, reaches water line and ...
My Dolphin won't run for more than 30-60 seconds!
Not rated yet
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). When ...
Dolphin advantage diagnostic
Not rated yet
My dolphin vacuum it doesn't move in the water . Outside is moving please can you help me to fix the problem . I live in Cyprus and I bought the vacuum ...
Reset button on power supply
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I just bought a new Dolphin and no where in the user manual does it tell you what the reset button is for. Mine started flashing and then the unit shut ...
Dolphin Runs Intermittently.
Not rated yet
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
Not rated yet
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 ...
water in Dolphin motor box?
Not rated yet
I started my dolphin after cleaning it. While it was pumping water through it flipped on it's back on the bench in the shallow end and stopped working....
Dolphin Pool Cleaner Motor Broken.
Not rated yet
It appears my motor is bad in my Dolphin pool cleaner. Is there anyone in the Sacramento, ca. area that repairs them?
ADMIN REPLY: Unfortunately, there ...
Dolphin Repairs
Not rated yet
Dolphin Pool Supply
231 Ronkonkoma Avenue
Ronkonkoma NY, 11779
631-467-3173
25 plus years in dolphin repairs
Great info!! Need new blue power cord for my dolphin diagnostic
Not rated yet
Where can I get a new blue power cord for my dolphin diagnostic? Is there a part number because normal searches are turning up nothing...
ADMIN REPLY:...
Dolphin Magic motor testing
Not rated yet
Magic Dolphin had broken one brush cylinder.Power pack failed( as consequence? ) Repaired with new thermal protector switch and rectifier.Tested motor ...
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????
My dolphin pool just floats
Not rated yet
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
The unit shorted out and i just need to reconnect the wires. Is it and allen key? I have never seen this type of connection before. Please be specific ...
Dolphins tarts but gets stuck in one place
Not rated yet
My Dolphin advantage starts OK and moves along for a few minutes but it eventually gets to a sidewall and tries to climb it. The top propeller stops so ...
Maytronics circuit board repair
Not rated yet
First, on mine, I do not have to remove the side panels to remove the motor assembly. The screws are accessible from the handle opening.
My question ...
4X4 dolphin one set of treads turning.
Not rated yet
Having trouble with our 4X4 dolphin one set of driving wheel treads works the other appears to be jammed. This causes the unit it go in a circle. Have ...
Dolphin Diagnostic Easy Repair
Not rated yet
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 runs 2 feet and stops
Not rated yet
I also have two Dolphin cleaners and both units go about two feet and shut off.
I read in one posting that is could be the motor.
Has anyone found ...
Dolphin Pool Cleaner motor
Not rated yet
Greetigs All,
my dolphin was free and worked great for two years now the drive motor is shot and can't find anyone to repair it.I miss the hard work ...
self test why do these things fail on such a grand scal
Not rated yet
if the cleaner runs through the self-test cycle as prescribed by some sites, what makes it realize that it shouldn't procede with the pool cleaning?
if ...
Water in Maytronics Dolphin Motor Box
Not rated yet
Had the same unit for 3 years and it suddenly stopped working. Tried calling Tech support and no one would talk to me. I tested the transformer and cord ...
Dolphin Diagnostic 2001 Doesn't move in Pool
Not rated yet
I have the Diagnostic 2001 and it has run well for 6 years. Recently it started to stop intermittently while cleaning. Now it does not run at all in the ...
Dolphin not running, belt hard to turn in one direction
Not rated yet
My dolphin was working fine. Recently when I put it in it runs one direction, goes up the wall, then goes the other direction and stops. I looked at the ...
Dolphin Pool Cleaner Misses Corners
Not rated yet
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
Dolphin Pool Cleaner Motor drive turns for 2 seconds, pump (impeller) shaft turns 2 revolutions and stops. I have the motor housing and will open if I ...
Dolphin Electronic Card Fuse
Not rated yet
Goodmorning
we have a problem with our dolphin diagnostic 6h unit.
we have a electronic card is fuse (drive motor).
We ask how repair this or where ...
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 ...
Get my Dolphin pool cleaner back to work
Not rated yet
my dolphin was free and worked great for two years now the drive motor is shot and can,t find anyone to repair it .I miss the hard work hard work it did ...