Dolphin Troubleshooting for Your Maytronics Robot

Dolphin 4 power supply socket failure 
A few years ago to fix an intermittent I changed the amphenol plug which connects the robot cable to the power supply. This year it was behaving like …

Dx3 s  
I’m having an issue when I attach the cord from the power box to the robot the Timer stops blinking and powers down. Originally I dropped the power unit …

Nautilus cc plus 
Nautilus cc plus 3 years old, has new foam rings, runs as it should, noticed impeller barely moving, not pushing water out of the top of the unit like …

Cord gets wrapped into the front of the machine  
Power cord keeps gets wrapped into the front roller brush. Very hard to get out.

Dolphin Diagnostic works only when upside down 
Hello, I have dolphin diagnostic robot that is only working when it is flipped upside down. What could be the problem?

Dolphin E10 flashing blue 
My Dolphin E10 stopped working. No movement at all. As soon as you hit the power button the blue LED surrounding the flash. They are usually solid blue. …

dolphin m4 supreme stays in deep end 
I move my dolphin to the shallow end and it will go one sweep and turn for the deep end. How do I get it to clean the shallow end of my pool???

Light on but nobody home 
I have had the Dolphin Robot for a few years. It worked yesterday. Now the blue light on the main power source goes on, but no movement from dolphin. I …

My Dolphin has a power source with blinking on/off 
My Dolphin has a power source with a power button and three scheduling buttons. The unit works fine but on occasion, the power button (the on/off button)blinks …

Dolphin Nautilus Pool Sweep 
I have a Dolphin Nautilus pool sweeps and have had Leslie Pool work on it now for 3 times, they have replaced the motor, controller and power cord but …

Maytronics Dolphin Pro Not Moving 
The propeller spins, but the unit does not move. There are no obstructions as I replaced the drive tracks. Both tracks spin when out of the water. Any …

what resistor is CR 38 on Maytronics diagnostic 2010 2310075LF REV1 
Need to verify what the specs are on the resistor in the CR38 location

Newer Dolphin, double wide. Power supply cord at control is over heating. 
Newer Dolphin, double wide. Power supply cord at control is over heating.

Replacement Aquabot Power Supply getting very hot 
I purchased a power supply that was a demo from a showroom and it's relatively new. It gets very hot, but I'm not sure if this is normal. The Aquabot …

nautilus cc plus is moving very slowly and is struggling to climb the pool walls. 
My 2 year old nautilus cc plus is moving very slowly and is struggling to climb the pool walls. A toy did get lodged in the track and after a month of …

stuck manually cleaning the pool 
I have an older dolphin cleaner that just stopped working one day. The impeller would not move, the tracks would not move....it would act like there wasn't …

Cleaner hose rubber detoration 
Just wanting to know if i can reseal hose as blue tiny rubber is coming off or do i just buy a new one? D.homer@candk.asn.au

Rubber gasket/seal while reassembling 
I followed the scant instructions to clean the impeller when my unit repeatedly turned off after 10 to 15 seconds. Now putting it all back together, I’m …

Robot stop climbing walls Premier from 2014 
Premier from 2014 does not climb walls, unless pushed manually. Tried everything imaginable, no success (cleaned pool walls, replaced climbing rings and …

Maytronic Dolphin DX3 pool cleaner 
Unit runs 1 foot - reverses and runs 4 feet then stops. Recently replaced the circuit board. Impeller has lost 2 of 3 blades.

Weekly Timer Question 
I may have missed something..,, Why would you need to program the cleaner if it needs to be removed from pool after each use? Are we supposed to just …

Sits and blow air out top 
I love my dolphin cleaner. What it has started doing though is just sitting and blowing air out the top. What do you think???

Dophin M400 runs 3-5 minutes then shots off 
Dophin M400 runs 3-5 minutes then shots off. Bought new switch box that is on cart. Any ideas ?

Dolphin swash model gets stuck on wall 
My pool cleaner was discovered with track off and diving ball toy in inlet. So removed toy, replaced track and ever since it won’t work properly. It always …

Click here to write your own.

Dophin stopped working is it cold water 
I've had my Dolphin pool cleaner for 4 or 5 years, never take it out of the pool, leave it in year round. For the first time it has stopped running. …

Dolphin s300i brush is stuck  
Some fibrous plant material got into the pool and has wrapped around the sides of the front brush. I need to take it off to remove the material but I can’t …

Dolphin Nautilus Cleaner goes 2 feet, stops, and comes back to the starting point 
I have had my Dophin Nautilus cleaner for less than 6 months and have used it twice. When I try to use it now, it goes 2 feet in one direction, stops, …

Dolphin lost its balance and traction 
I have a dolphin DX3. I just changed the power supply and cable. Now the dolphin gets stuck real easy and ends up on its side and stops. It doesn’t have …

Dolphin deluxe 4 climbing issue and answer 
I purchased a private label Dolphin deluxe 4 from Leslie's Pool some years ago. It has been a good cleaner. This year it has been malfunctioning. It …

Help please!! Filter light won’t shut off! 
This is our 2nd summer with an inground pool (we bought the house over a year ago and it had it! Last summer everything was perfect!!) and so far everything …

Dolphin Diagnostic - Only one of the two tracks / treads turns  
I recently noticed that only 1 side of my Dolphin Diagnostic tracks / Treads is turning. The side that is turning is on the motor drive unit side. It seems …

Fan not spinning  
I have a m 400 and the fan on top is not spinning and pushing water out . The robot won’t move I don’t know if it’s because of that fan or a bigger issue …

Dolphin Triton switch issue 
My 3-yr.-old Dolphin Triton switch seems to be bad. I have to press it several times to get the vacuum to turn on, and the last time I had it on the deck …

Dolphin falls on its back upside down 
my dolphin has worked great but it often falls upside down leaving tracks spinning and eventually shuts down

Dolphin Magic runs for 30 seconds 
Hi, I have a Dolphin Magic which runs for around 20-30 seconds and then stops. I opened to inspect the circuit board and it looks fine. I checked the …

Filter indicator turns on too soon 
My filter light goes on after only a few minutes, even with a clean filter. I'm using the mid level filter.

Dolphin M200 Stuck on Side 
Our Dolphin M200 is 2 years old. Worked great last year, but now after climbing wall it will often fall back into water and lay on its side. It remains …

longer power supply or extension cord? 
hi guys, Just purchased a dolphin oasis z5 and set it up. So far working like a charm. However, it is just a few feet short of reaching the other side …

Push button lights up 2 sec. Then off 
The robot gets an impulse because the propeller starts to spin a little. But no other signs of life... We examined robot for stuck treds, all good. I measured …

Dolphin Interactive - Diagnostic Power Supply - Timer Lights Up, then goes Dark 
Thank you for the great troubleshooting advice to bypass the timer. I was late opening the pool, and there was a layer of silt on the bottom that I was …

matronics always says bag dirty  
right aafter cleaning filter bag and putting in the pool it says the bag is dirty in no time. The pool bottom is not that dirty just neeed a vacuming. …

Dolphin 4 - Algae Coming Out the Top 
I bought a used Dolphin 4 and it works well. The problem is that even though it is sucking up the debris and dirt, it seems to let the algae through. …

Dolphin Nautilus only cover a small area 
Dolphin Nautilus only cover a small area of the pool. If you place the pool cleaner on the opposite side of pool it returns to the same "previous" spot …

Dolphin Premier will not go to top of water line  
Hello, I have been looking for a trouble shooting on why my Dolphin Premier is not going to the top of the water line but cannot find any. can you tell …

wall Clima from davey won't turn 
I have the wall Clima from davey (made by maytronics) . It runs from side to side does not turn or go to any other position in the pool .

Drive motor moved 
Hi, Our dolphin easykleen stopped working few days ago. I ralised that the caterpillar motor shaft was not anymore mecanically connected with the caterpillars. …

Dolphin Dynamic Start/Stop Problem 
My Dolphin Dynamic starts, cleans as expected, but stops after a few minutes. What is the remedy? It is 12 years old but used to work as usual until recently. …

Dolphin Delux 4 Dynamic D. C. 
Our unit was working fine, After cleaning the pool we removed the unit to clean the filter bag and noted NO problem. After a few days and a few thunderstorms …

Dolphin DX3 Not Working 
My dolphin is 13 months old and has worked perfectly until this point. I put the cleaner in the pool and shortly thereafter found it stopped with the front …

Click here to write your own.

Dolphin not receiving power 
Dolphin was working but acting sluggishly Pulled it up by the cord to clean its filter bag rinsed filter and re installed it placed dolphin back in …

Dolphin diagnostics 2001 will not move 
I borrowed this from a friend to clean my pool. I only used it 2 days. Day 3, the power light comes on on power supply box, but the cleaner does nothing! …

My Dolphin doesn't pick up dirt or debris 
It moves. I put in new cartrdiges. I've checked the impeller. The brushes move. It just doesn't pick anything up.

Dolphin moves but doesn't pick up debris/dirt 
Filter cartridges clean. No obstructions for impeller. Not sure why not picking up. It goes back and forth and climbs wall but picks up nothing

Dolphin left out of Pool Running 
Our Dolphin was left out of the pool but was not shut off for 12 hours. It now does not start. Is it here anything we can do?

nothing binding 
first time this year we were using it. it goes 1 foot forward than 1 foot backwards nothing binding i took it out of the water turned it up side down …

Dolphin DX-3 Starts then Stops after a few feet FIXED IT! 
I started having this problem and I read online where other people were having similar issues but none of their issues were my issues. I took my dolphin …

Help Old Dolphin moves 10' back and forth 
So, my dad gave me his old dolphin, he lost his power supply so I bought a new one. Starts up and runs like a champ, but it just goes like back and forth, …

Maytronics X5 Starts/Stops - Possible reason? 
I have a Maytronics X5. Recently found that the impeller was shattered. I've cleaned all the debris and broken parts out. Unit starts up initially and …

Dolphin Triton won't move 
I have a dolphin triton less than a year old. The power supply lights up but the unit never moves. I have taken it apart and checked for debris but it …

Bag Won't Trap Leaves 
When my dolphin picks up leaves, they do not go into the bag, instead they up into the motor and you can see them sticking out of the top of the unit. …

Dolphin M5 Pool Cleaner 
This is a suburb unit. Does a great job of cleaning the pool with very little human effort. One problem I would like to hear people's opinions about. …

Ball bearings at Pool Bottom 
I keep finding ting ball bearings at the bottom of my pool. Could this be from the dolphin?

Sticking on main drains 
Our dolphin pool cleaner is continuously getting stuck on the main drains. We have had it 3 yrs and this is the first summer this has happened so frequently. …

dolphin blowing fuse after one hour 
my dolphin runs great for one hour then blows the fuse so it is not a short. any suggestions?

Resistor identify R38 on Maytronics Basic 2010 2410073LF REV 01 
Hello! The R38 Resistor on my board is burned. What is the correct replacement. Its a Dolphin Moby,and water came in Motorbox . Thanks for help …

Dolphin Premier won't pick up sand or climb walls 
I did a good bit of research on robotic pool cleaners and decided on a dolphin premier. It looks nice, but will not climb the walls well (I have an in …

how do I know when it is time to Replace Maytronics Dolphin Nautilus Tracks and brushes 
I am having to replace the climbing rings on my maytronics premier dolphin pool cleaner. In order to do so, I have to remove the tracks and brushes. …

Dolphin Supreme M5 not filtering dirt 
Our Dolphin Supreme M5 puts dirt back into the pool. You can see the dirt coming form the water outlet on top of the unit as it moves through the pool. …

Dolphin M4 just stays in the deep end 
Brand new Dolphin M4 just stays in the deep end. no kinks in cord, clean filters and cartridge. have tried adjusting floats….nothing works.

Dolphin won't suck leaves  
My dolphin seems to be working normally but when I pull him out of the pool to clean the bag there are t any leaves in it. The bag is obviously very dirty …

How to repair a Maytronics Dolphin robotic pool cleaner that quits early 
This is a long story. My Dolphin Advantage failed after infrequent use over a period of 8 years. The unit still looks almost new, not like the used ones …

Maytronics Dolphin Nautilus, Timing Track 
The timing track has 1/4" more slack on one side than the other. One is nice flat the other is loose. I don't see any provision for adjustment. Any suggestions? …

Brand new out of box today, Triton Fails 
Brand new today - followed directions and placed in pool to clean. Ran for about 20 mins then shut down. Tried to restart, ran for 10 seconds and shut …

Power Supply 
Dolphin 4 Power Supply Unit = Diagnostic RD-DC The power supply unit does not operate. Worked fine one day and not the next Maybe 3-4 years old. …

Click here to write your own.

where can I buy the circuitboard? 
Machine performs perfectly, until I tried to use it for the first time since last winter. The power supply must have been either dropped or the environment …

Advantage Plus Cleaner shuts down too soon 
I have a advantage plus rc. This is my second year of use and the unit shuts down after a hour. Sometimes the full bag light comes on even though the …

Resistor Identify 
I have a Maytronics DX4 that only runs for 10 seconds and stops. I have the board out of the motor box and the resistor in position R14 is burnt to the …

power supply all lights are blinking 
for the first try, dolphin woke fine for a day. next day, clean it and put it back in and all the lights are fast blinking, the power light won't come …

help needed - goes to same path over and over in deep end 
My dolphin always worked great but then last time i put it in my relatively large pool, once it gets to the deep end it just goes back and forth over and …

Dolphin Cleaning cycles Automatic Restart 
What do you do about running the cleaner while on vacation? I don't know if this is the case with new models as mine is about 3 years old, but if I'm …

Clean Filters Light is ON, Unit Won't Run. 
I only used my nautilus about 10 times and now the "clean filters" light comes on and unit won't run. The filters are clean but the motor doesn't turn …

Dolphin M5 Supreme Liberty Charging Problem 
I bought a new open box Dolphin Liberty on Craigslist (not even assembled yet) and after charging is completed the Dolphin worked for two cycle only. Now …

Dolphin Runs for 15 Minutes 
I bought my Dolphin Diagnostic Advantage in May2006 i have a screened in pool so i only use it a couple of times each season at the moment it only works …

Dolphin climbs a wall and stops 
The Dolphin does not clean the floor. It goes straight for a wall and climbs it. It then stays on the wall and eventually turns off.

Stops after 30 seconds  
Stops after 30 seconds. It starts and runs around in the pool but stops. Nothing appears to be stuck in it and when I check it it does not appear to pick …

Dolphin Service  
Hello, I work in Dolphin Service for a company distributor of maytronics commercial dolphins, the company is called spear corporation and if anyone has …

my dolphin continues to flip on its side 
During its cycle, my dolphin just started tipping on its side or on its back. Why does it no longer stay flat on the bottom? ADMIN REPLY: That's a new …

R3 Resistor Value Dynamic Pro 
Hello Could you please to tell me the value of R3 resistor on the board of Dynamic Pro X2? Picture in attached file. Thank you Yuri ponitech@yandex.ru …

Moby Stopped, Need Help 
My Moby stops after moving for 1 second. I already measured the voltage this is 27V DC and is ok. When I open the motor compartment I see a green led …

the robot doesn't sink 
After the completion of a cycle, I took the robot out of the pool, washed the filter bag, reassembled it and put it back into the pool to make a second …

Dolphin floating cable only has 3 prongs 
I just bought a brand new Dolphin Deluxe 4. As I was about to put the connector from the floating cable into the socket on the power supply, I noticed …

Dolphin (what we call Flipper) 
I'm seeing postings about Dolphin starting up, going a few feet, reversing and going a few more feet... then just stops. Help!!! ?????

Dolphin Blowing out debris 
Why is my dolphin blowing debri out the top? ADMIN REPLY: Most likely a hole in the bag.

Constant 37vdc & won't run 
I know it sounds crazy but Im getting 37.2VDC even when the PS is not pluged in to an outlet (110VAC). Im guessing it has somthing to do with a capacitor. …

I have 37 vdc, but loses power right away 
I have the 37 vdc, but when I plug the dolphin cord in, I lose the 37v. I have to unplug main power, wait about 1 minute, plug back in and the power comes …

Dolphin power supply keeps tripping GFI switch 
I have a brand new power supply, only used it last season for about 2 months. I've recently opened the pool and when I plug in the power supply it trips …

Dolphin Star won't climb walls 
My pool is a perfect rectangle 25ft X 12ft, shallow end is 4ft deep and deep end is 7ft. It is fully covered with small glass tiles. I got a brand new …

Dolphin stops before cycle is finished 
My Dolphin was made in 1995. Just recently it has stopped before running through its cycle for cleaning the pool. If I turn it off, wait a few seconds, …

Fuse keeps blowing out. 
I have a Dolphin Dianogontics #4 and the fuse keeps blowing out every time I put the switch on. How much is a new power supply? Is it something I can …

Click here to write your own.

My Dolphin Diagnostic Sank! 
Hi! My Dolphin Diagnostic Sank! Seems like an "O Ring" failed and water get into the unit. I think motors are OK as they seem to be waterproof, but …

Dolphin Pool Cleaner Sucks dont buy one. Company does not Honor Warranty 
The first one i bought wouldn't go up walls and was intermittent so i brought it back the second day and they told me they never had this problem. Well …

Dolphin Pool Cleaner won'tRun More than 30 seconds 
I have a Dolphin cleaner for our pool. Just recently it stopped working correctly. I can turn it on but it won't clean the whole pool - only about30 seconds. …

Dirt Falls From Robot Back Into Pool 
When i pull the dolphin out of the pool, dirt falls back into the pool.

Dolphin Tracks will not turn 
We just opened our pool and put in the Dolphin pool cleaner. It ran for about a minute, and then stopped moving. we checked out all the plugs and cleaned …

Dolphin HD starts and runs 2-5 seconds 
My cleaner is about 4 years old. I think the drive motor is out. is it possible to purchase a motor or what are my choices?

Dolphin Cleaner not working at all 
I just moved into a new house with an inground pool and a Dolphin. I made sure it was clean and ready to go. It looks new but when I plug it in the power …

Odd Dolphin Diagnostic behavior 
Hi, After running, cleaning and dropping the Dolphin Diagnostic back into the pool, it wouldn't start up. I pulled it out and turned it on and could …

Dolphin Pool Cleaner won't suck 
Brand new Dolphin will not suck at all. any ideas?

basic dolphin robotic cleaner - missing the bits 
This machine is great, it has cleaned my pool in 3 hours, however, it has missed a strip right down the middle of the pool. Does anyone know how to set …

MY DOLPHIN RUNS A FEW SECONDS THEN STOPS 
MY DOLPHIN RUNS A FEW SECONDS THEN STOPS...WILL NOT RESTART. IT IS ABOUT 4 YRS OLD. IT IS USED ABOUT 3 MONTHS OUT OF THE YEAR FOR ONLY A FEW HOURS A WEEK. …

Dolphin Diagnostic Transformer burns fuses 
I need help here, my Dolphin Diagnostic Transformer burns fuses. Is it the board faulty? Or is it the switch? Please help me. Thanks!

Power Cord Twists  
I have had the Dolphin Diagnostics by Maytronics for about 4 or 5 years and it seems to have lost its ability to clean as well as it used to. Now this …

always going forward,,, 
My dolphin just started this issue,, it stays in one direction all the time.. it won't reverse itself.. anybody have any idea what they think might be …

power to robot 
I have 33.9 volts to the robot but no power coming from board inside robot is this board available?

Dolphin Nautilus CC Plus Stopped Working 
Hello, I received my new unit around mid April of 2021. Everything has worked perfectly up till yesterday. I usually start the clean cycle manually right …

Dolphin Escape popping wheelies 
The title says it all. Unit is just over a year old and was very expensive. Any guidance would be much appreciated.

Dolphin Drive 
The motor is running fine, it is pumping major water through the unit, but the tracks are not moving. I took both side plates off and cleaned out the leaves …

My power supply will not come on...HELP 
My power supply will not come on...HELP ADMIN REPLY: Knowing the model would help. Knowing if you checked the GFI outlet and power to the outlet would …

Dophin Junk 
I have a dolphin pro which worked for just a month past warranty. I was told by the repair center that the motor was bad and they wanted 550. to fix it. …

Won't reverse 
Tiger Shark operates normally in one direction, but won't reverse. Tried turning off power and allowing unit to reset, but no luck. Any help would …

Dolphin Diagnostic 2001 Only Runs for 2 minutes - Controller Power Supply or Transformer? Not rated yet
Our Dolphin Diagnostic 2001 turns on fine. The impeller at top spins and water flows through it, and it moves as if it's about to start it's normal cleaning. …

dirty pool Not rated yet
my active 20 pool cleaner moved a few feet than stopped. I disassembled the impeller and cleaned it out. When i conducted a dry test with the vacume upside …

Dolphin releases what is sucks up after it stops Not rated yet
I do still love my Dolphin, but after she stops, she throws up what she ate. This is before I can pull her up. The basket seems full until she finishes, …

Scheda basic 2010 2410073lf rev 02 Not rated yet
Nel motore del mio Dolphin thunder 20 è entrata acqua. La resistenza r38 è bruciata , vorrei saperne il valore per sostituirla. O sapere dove poterne acquistare …

Click here to write your own.

5 star ratings should be NO Star Ratings Not rated yet
I was reading the reviews for the different Dolphin robotic pool cleaners. Most were saying that they've had nothing but problems with theirs no matter …

Dolphin DL19138B goes forward backwards then shuts off Not rated yet
Love our cleaner but can't seem to get it to stay on for more than a few seconds. Tried just about everything!! Please help!!

Nautilus CCPlus tips over Not rated yet
5 year old robot. 2 year old Maytronic replacement motor. Drives/ vacs just fine but the damn thing gets stuck on it’s side all the time. It’s like the …

Proteins DX4 runs a foot then stops.  Not rated yet
All lights are on. Nothing on impeller. If I pull it up,sometimes it will start back but will stop again. Under warranty but am hoping for a quick troubleshoot. …

R38 port resistor Not rated yet
Where can I buy the 18 olm resistor for my dolphin pool cleaner. It is the resistor that is @ R38. Now have 2 boards with the same issue. Where can I buy …

Cannot open top door to get the basket out. Not rated yet
I pulled the pool cleaner today to close the pool. I cannot open the top door to get the basket out. Does it have a lock when it is running that may …

Dolphin Deluxe 4 sometimes no drive, sometimes no impeller Not rated yet
So my Dolphin Deluxe 4 is several years old, probably at least 6, and recently it has started to show it. I have changed both of the tracks, the climbing …

Dolphin Nautilus CC Plue Not rated yet
My pool cleaner will only go backwards, when it attempts to go forward it moves slightly forward then goes backwards again. I can hear a slight tumbling …

Red light on Not rated yet
Why is my red light on? I’ve cleaned the filters, got new filters and don’t d the reset upside down test. And what do the 1-2-3 lights mean?

tracks spin in opposite direction Not rated yet
new M400 worked for a week now the tracks are just spinning it in circles anybody have this happen?

Dolphin DX3s shuts off when vertical Not rated yet
My dolphin just stopped running full cycles. I have notice when it does a vertical wall, it stops, if I move the machine till it is flat, it continues. …

Maytronics COP-MOD60 REV06 board burned SMD resistor Not rated yet
Hello I love myAquabot Automatic Pool Cleaner - community, in my pool cleaner there is a Maytronics COP-MOD60 REV06 board. Unfortunately the impeller …

Burned SMD precision wire resistor on the COP-MOD60 REV06 circuit board  Not rated yet
Hello I love myAquabot Automatic Pool Cleaner - community, in my pool cleaner there is a Maytronics COP-MOD60 REV06 board. Unfortunately the impeller motor …

Burned SMD precision wire resistor in COP-MOD60 REV06 Not rated yet
Hello I love myAquabot Automatic Pool Cleaner - community, in my pool cleaner there is a Maytronics COP-MOD60 REV06 board. Unfortunately the impeller …

Dolphin Commander repair now at a stand still. Please help. Not rated yet
So my dolphin commander stopped working. The first thing i found was a blown fuse. I bought new ones only to blow again. After researching, I found …

Dolphin won't run, says doors are open on filter area Not rated yet
We love our Dolphin, one of the doors has always been a little goofy, and would sometimes open as the Dolphin sunk to the depths of the pool. The door …

Dolphin C4 loosing track when climbing walls near skimmer. Not rated yet
Bought a C4 last September and now its loosing a track when cleaning the walls near the skimmer opening. Already replaced the tracks. Any suggestions? …

Dolphin DX3 Does not move when placed in water but will move out of water. Not rated yet
When I place the Dolphin DX3 in water it will not move. It turns on and the impeller is moving. When I take it out of the water and turn it on the tracks …

Dolphin m4 Not rated yet
I recently had the motor replaced on my dolphin m4 and since then it does not clean the whole Pool. It just goes back an forth..

no random pattern Not rated yet
My Dolphine works fine at picking up debri, climbing walls, going in straight line length/width of pool etc. It just will not "enter into a random" pattern …

Dolphine supreme M4 pro Not rated yet
Hi Recently, our Dolphin supreme M4 pro has broken down. When we turn on thé robot he turns to thé right 90 degrees and then turns back to thé left …

My Dolphin DX3 doesn't work like it used to Not rated yet
I have a Dolphin DX3 robot pool cleaner. It doesn't wonder around the pool anymore, It'll just stay in one area going back and forth. I have a 20X40 unground …

Power lights on base but cleaner not responding Not rated yet
My base has power lights on but my cleaner will not do anything. More than once the cord pulled the base and it fell off cabinet it sits on. What steps …

Dolphin S300i PX flashing light Not rated yet
My Dolphin S300i power supply green light is flashing once you turn it on. And the Robots lights doesnt come on and the App says the robot is off. The …

E10 starts, but then stops Not rated yet
I have been having a problem over past week, which I cannot nail. The dolphin will start, it will roll forward a few feet, then move back a few feet …

Click here to write your own.

DOPHIN NAUTILUS GETS STUCK ON STEPS CORNER Not rated yet
I have a almost new Nautilus CC. IT frequently gets stuck on steps where it meets the pool sidewall. Since I frequently travel I have to pay someone …

S100 wont hold sucked up sand anymore Not rated yet
New pool owner, this device when working is a gift, but after 12-15 uses it does not hold the sucked up sand it used to. Fan/pump is fine. It draws the …

Dolphin Nautilus likes to go up on sides but not the bottom Not rated yet
Maybe we have some setting wrong or something. We just bought the Dolphin Nautilus this year. It has always done this to a certain degree, but now, it …

My dolphin gets stuck in same spot Not rated yet
My Dophin Active 10 has been great for three years. However this year it get stuck on the left side of pool ladder and cannot escape. (Above ground pool) …

debris comes out of the back of the cleaner.Dolphin Nautilus CC CleverClean  Not rated yet
Machine, Dolphin Nautilus CC CleverClean Robotic Cleaner, Serial # Q8336MCAI, picks up fine debris at the bottom of pool, but debris comes out of the back …

Dolphin Delux 4 Replacement Power Supply Connector Not rated yet
My Dolphin Deluxe 4 developed an intermittent in the cable right by the power supply connection. Should this happen to you there is a replacement connector …

dolphin pool robot blowing fuses after bearings break Not rated yet
Hi, my pool cleaner has stopped working bearing have come out of the pulley, not realizing it had stopped for a while power supply unit had gotten hot …

Splayed Hex Adapter Repaired on Deluxe 4 Not rated yet
At the end of last summer, my Deluxe 4 stopped moving. Clearly the impeller was working because I could see the water circulation it was causing at the …

Nautilus cleans once after being set. Not rated yet
I noticed the nautilus not running. When to restart the cycle for the week and it was having issues and shutting down. A closer inspection revealed one …

Ddolphin triton plus bought 2016 doors arent shutting tight Not rated yet
Air is getting into my robot I believe because the doors around the filter cartridges are not clicking and closing shut. My machine power light turn on …

Dolphin no longer covers the entire pool surface Not rated yet
We have a dolphin dynamic… it has been wonderful, love it does a super job. This season however it will not randomly cover the entire pool, it goes back …

Won't power up Not rated yet
dolphin dynamics dx5- 6 years old. Had working in pool, checked on it later and found it had quit, which is not that unusual, but this time the light on …

problem with mu maytronics diagnostic power supply Not rated yet
I have got the maytronics diagnostic 2001, and after few seconds, the 30V start to decrease until around 2V. I have changed the 2 capacitors but the probleml …

Sucking leaves into the fan blade at the top versus into the bag Not rated yet
I took apart my Dolphin and replaced the brushes and now it is no longer sucking leaves into the bag? They are instead going into the top blade area....please …

Dolphin part fell off in the night... Not rated yet
We are caring for our neighbor’s pool while they are gone for a few days. They told us to leave the dolphin in the pool and don’t take it out as it is …

Dolphin wave 100 Not rated yet
We have had our unit 3+ years,I replaced tracks before season, but dolphin still gets stuck in diving well, there is a steep slope, wondering if I need …

dolphin pro rc Not rated yet
good morning, i wonder if you can help me. I had an issue with 1 of the 3 gold colored pins not making electrical contact inside the swivel device. I have …

Dolphin Supreme M3 runs for 30 seconds then stops Not rated yet
If you turn the power on the power supply, it will for around 3-4 minutes. When I select a number like 1,2 or 3 on the power supply, it will run for around …

DX5+S - clean filters, but will not reset Not rated yet
DX5+S - clean filters, but will not reset I clean filters and it will not reset and allow me to program the 7 day cycle

Help - need a reliable repair option Not rated yet
Our robot went in for "repair" after it stopped working last summer. We just got it back after we were told nothing was wrong - it ran just fine for them. …

Dolphin Diagnostic stops intermittently Not rated yet
My dolphin diagnostic is about 10 - 12 years old. It now stops after 5 - 10 minutes of running, but after 2-3 cycles of stopping and restarting it will …

diagnostic advantage. Only cleans in deep end Not rated yet
Own diagnostic advantage. Only cleans in bottom of inground pool. Will go up sides in deep end but no cleaning of shallow end. Any way to "reprogram"?

Nautilus - starts moves fwd a foot/back a foot, then stops! Not rated yet
I'm looking at my daughter's Dolphin Nautilus pool cleaner since I arrived at her place - supposedly on vacation!! It has had these symptoms for a while …

dolphin pro x 2 air sensor Not rated yet
dolphin pro x 2 keeps coming out of the pool at the beach entry. Is it a faulty air sensor?

Dolphin M5 suprem Amphenol connector wiring diagram request Not rated yet
Hi, I need the wiring diagram for the amphenol connector wich is on the output side of power supply unit of my pool cleaner Dolphin M5 suprem. The connector …

Click here to write your own.

Flipper (Dolphin) Scanner Control 2.0 Not rated yet
Good morning to all, I ask you for help. I own a Flipper Dolphin) Scanner Control 2.0 purchased in 2001 (probably). I ask whether it is possible to repair …

Dolphin M4 will not run Not rated yet
This is what happens: If the cleaner is not plugged into the power supply/controller and I turn on the controller, the on switch lights up and the …

Power Cord- pivot terminal leak Not rated yet
Bought my Dolphin 4 weeks ago, just stopped working after 3 weeks. Confirmed I have 29V coming out of the power supply but nothing at the unit. Saw …

Not Sure What is Wrong - Dolphin Diagnostic Advantage Not rated yet
I am not sure what is going on with my Dolphin Diagnostic Advantage Pool Cleaner (DL2019. It runs in our in ground pool for about 20-30 minutes then stops. …

Dolphim keeps popping wheelies. Not rated yet
My dolphin power supply working and everything is moving however, it keeps popping upright and staying that way. I have taken everything apart and nothing …

No Power Not rated yet
Power Supply (PS) was on but no DC voltage coming out. Pulled apart PS and looked at the board. One Capacitor seem to be burnt. Replaced 2 caps and …

PC board failed parts available on Ebay for R14,R31, R43 and M3 for the skilled electronics individual. Not rated yet
Because so many people are asking for resistor values and replacements, I have decide to make them available through Ebay if you would like to attempt …

If your Maytronics moves forward, then back, then stops, read this post for why it happens... Not rated yet
The Maytronics Dolphins work well...when they work. They have a fairly sophisticated internal controller the drives each of the 2-3 motors inside their …

Dolphin Stops after 5 minutes Not rated yet
Brand new m5 put in pool. Runs for 5 minutes then stops moving. Runs fine for first five minutes. Turn off turn on. Same thing.

No Power for the Dolphin Deluxe 4 Not rated yet
I tried checking the outlet and it's fine. Also moved to different outlets. Nothing. The bag is clean and the unit was working fine yesterday.

Green LED blinking inside motor box. Not rated yet
One poster stated he had same problem and found a bad resistor on the PC Board. Is that fixable or new motor time? If fixable, anyone have a web site …

old dolphin slow go Not rated yet
My dolphin was working fine the last time i used it. I cleaned it up and when i put it into the pool the next time the traction was very slow and the propeller …

Love my dolphin Not rated yet
Dolphin vacuum works great however it was working fine yesterday today every time I plug it in my GFI trips and wont reset til vacuum is unplugged not …

why does my dolphin pool robot float? Not rated yet
last year it worked fine. this year it was fine for two weeks, the bag is clean. but it won't sink to the bottom anymore? how can i fix this problem? …

Dolphin DX4 Wion't Reach Ends of Pool Not rated yet
How can I get the Dolphin 4 to clean the ends of my pool. It is a small pool so that is not an issue. No matter how many times I move it to one end, it …

Dolphin just climbs the walls Not rated yet
Any suggestions.... My dolphin just climbs the walls!!! I've tried moving the black hands inside, out, one to left, one to right! Help please!!!!

Dolphin robot gets stuck on wall return jets Not rated yet
Just got my Dolphin Supreme M5 today. Works well, but when climbing walls, it gets stuck on the return jets which protrude from the wall. I have swing …

Dolphin Power Supply Problem Not rated yet
I have a Dolphin that is approx. 8 years old. The power supply switch turns itself off as soon as I turn it on. The unit worked fine two days ago. Any …

Dolphin Stopped after Motor Replacement Not rated yet
Our Dolphin Supreme M4 needed a new motor. It would move a little, maybe go up a wall a bit then fall off and stop or just stop altogether. It seemed only …

DX4 Clogged Bag Light Not rated yet
I have an Dolphin 4 Deluxe. When I turn it on the clogged bag light blinks and it will not move. I have cleaned everything I can possibly clean.I have …

moby 2 year old stays in one end Not rated yet
recently purchased used. likes to stay more in one end of pool and at times does not clean entire floor. is it permitted to guide the robot to the missed …

foward for a few second then reverses Not rated yet
I put my robot in the pool for the first time this year. It goes foward for a few second then reverses for a few seconds. The fan for exhaust on the robot …

dolphin commander Not rated yet
appears to work for about 1/2 second, impeller is not spinning but belts and brush wheels are moving, what can the problem be. any trouble shooting ideas …

Woke up robot from winter sleep and wouldn't move Not rated yet
I have had the dolphin diagnostic for 8 seasons without issue. This year we powered it up, hooked up the hose and it just sat there. Would not even go …

Power source turns off  Not rated yet
After a few seconds after turning on the power source the motor starts The dolphin will go forward about a foot and then the power source shuts off …

Click here to write your own.

Will Robot cause Holes in Liner? Not rated yet
New liner installed had holes on bottom shallow end only pool man said it was robot,robot fine no sharp objects, possibly liner installed improperly? …

Moisture iIn Motor Problem Not rated yet
I checked my power supply, it is fine. I opened up the grey box and found moisture inside. The problem was it would start and after less then a minute …

Power pack takes a dive Not rated yet
despite "NO diving" rules my Dolphin power pack took a dive into the pool and does not work. Will it dry out? Will it nullify any warranty if I take the …

Dolphin Power Supply Not rated yet
My dolphin will not turn on. The light did not turn on on the power supply when I push on. Any ideas?? ADMIN REPLY: Does the power supply turn on …

Dolphin Stays in Deep End Not rated yet
The cleaner spends most of it's time cleaning the pool's deep end and very little time in the shallow end. ADMIN REPLY: Could be a dirty bag. Try running …

Switch problem Not rated yet
While the dolphin is plugged in, when I try to turn on the power switch, it pops back off.

Dolphin Erratic Not rated yet
Dolphin Dynamic plus four years old. Put alway last october clean. Come to house and pool and tried for first time yesterday. Found problem. Taken everything …

my dolphin model m3 only works for 30 mins and then stops  Not rated yet
my dolphin colour pale blue and yellow caps has been brilliant until recently when the following happens it works for 30 mins approx and then stops it …

Dolphin will not power off Not rated yet
The four blue lights on the power indicator will not shut off. ADMIN REPLY: On/off switch my guess

Dolphin Advantage On Off On Off Not rated yet
My dolphin diagnostic advantage turns on then off thin on and off three times then just sits there. Machine never moves at all. I have constant DC voltage …

Starts and Runs For Two Minutes Not rated yet
We have dismantled all parts, with the exception of the relays The machine will start and run for about two minutes. We then disconnect, start it again, …

swivel cable will not swivel  Not rated yet
cable is not swiveling, just knots up. Help rjkraemer@yahoo.com ADMIN REPLY: Call Maytronics, I have no experience with the swivel. Please come back …

Yellow Drive Belt Question Not rated yet
It has worked beautifully low these many years. However, this year it only moves in a small relatively square spot..but clean this well. Upon investigation …

blown fuse on dolphin commander Not rated yet
The dolphin commander just stopped working. I checked the fuse in the back of the power unit and it was blown. Replaced a couple of times and as soon as …

Wet Power Supply Not rated yet
HI my power supply is not performing i got the dolphin,#dl2019 out of the shed and the power pack had water in it. I let it dry in the sun fully open, …

dolphin pattern Not rated yet
I just bought a pre-owned dolphin. My old died after 10 years and i liked it so much I bought another one. But this one only wants to go to the deep end …

Just moves a few inches and stops. Same thing if I try it again Not rated yet
When I plug it in, and turn on the switch, the impeller runs for a few seconds and the unit moves forward a little bit then it stops. Any help would be …

My new dolphin DX3 does not complete the cleaning cycle Not rated yet
I bought a dolphing DX3, I have used just a 2 times. The problem is that the robot does not complete the 3 hs cycle. I works a few time and stop. So …

The Dolphin Diagnostic Advantage Power Supply Keeps blowing Fuses Not rated yet
The Dolphin Diagnostic Advantage Power Supply Keeps blowing Fuses: I looked for the fix DIY to this problem and found that the problem is either your …

Dolphin Explorer Won't Sink Not rated yet
My Dolphin Explorer worked fine when I started it up this year one time and now it won't sink......what could it be??? ADMIN REPLY: My guess would be …

Maytronics Dolphin Pump Not Working Not rated yet
I have a Dolphin pool cleaner. It turns on and the drive system works, but the propulsion fan seems to be on the fritz. When I initially plug it in it …

Just stopped! Power but no power? Not rated yet
I have a Dolphin and it has always worked great. Recently i used it to clean the pool. I turned it off to clean out the bag, I cleaned out the bag and …

Robot Power Supply Got Wet Not rated yet
I left my power supply for my robot nautilus out and it got rained on. It hasn't been able to come on since. ADMIN REPLY: When you searched this site …

My dolphin cleaner runs for a few seconds and stops. It moves for a few inches and stops again. Not rated yet
Wen I plug in and turn on the switch, the impeller runs for a few seconds and the unit moves forward a little bit and it stops. Any help is appreciated. …

Repair Facility Near NJ Not rated yet
My robot was working normal, then stop no start. power supply light is out need to replace power supply I guess I would like to know if any dealer …

Click here to write your own.

voltage output Not rated yet
When the dolphin stopped working, I checked the power, & removed the cable. the cable wires were twisted together inside of the bulkhead connector, I think …

Dolphin Deluxe 4 and Drain Covers Not rated yet
Our Dolphin Deluxe 4 gets stuck on the drain covers at the deep end of our in ground pool. We had our pool renovated and also went from one flat drain …

Dolphin Diagnostic Advantage Not rated yet
I put it in the pool, turn it on, it goes forward about 10 feet, it reverses about 10 feet then moves real slow forward and stops. I took the side case …

very upset about Dolphin Pro Not rated yet
I purchased a dolphin pro at the begining of summer. I have used it a few times with no problems. Ive followed all instructions on how to operate, and …

Dolphin Pool Cleaner Starts up and then stops! Not rated yet
it starts up and moves around for a minute and then just stops! Not sure what the problem could be. Anyone???? Mary

DOLPHIN 4 (BRAND NEW) Not rated yet
FIRST OFF I'D LIKE TO SAY I CALLED LESLIE'S WHERE I BOUGHT THE UNIT AND ALTHOUGH HE LISTENED TO ME HIS AWNSER WAS VERY UNSETTLING,HE SAID CALL MAYTRONIC'S..ITS …

the on switch goes on but the cycle button isn't working Not rated yet
I push the on button and that lights up, but the cycle button does not. i have unplugged everything, tried the outlet which i fine. It was working fine …

Comprehensive Directions the "Manual" doesn't cover? Not rated yet
I've had a lemon out of the box. Purchased a Dolphin Deluxe 4 from Leslies Pool Stores in St. Louis. The original power box had the rocker panel power …

Dolphin Dynamic will not turn on Not rated yet
Used my cleaner yesterday, ran perfect. Went to use again today and it will not come in. Not sure what to do to find out why. Unit was manufactured in …

it starts goes 5 inches , changes goes back 5 inches and stops..... Not rated yet
i just put my robot in the pool and as stated it only goes to the front for few inches , then goes back the same and suddenly stops , not moving any more........wonder …

Dolphin diagnostic power switch trips when attached to Dolphin unit Not rated yet
Had no problems with dolphin diagnostic. I changed propeller blade a few times, along with tracks but never had a problem. Just opened the pool, ran dolphin …

dolphin dx 4 not behaving Not rated yet
Hi there, when i put the dolphin into the pool and turn the switch on, it only runs for a few seconds and then shuts off. When i went to fire it up …

Dolphin Issues  Not rated yet
Dolphin PS Switch kept tripping, opened PS and found water.. Dried out all components got switch to work again, but takes a few tries before it sticks …

floating dolphin Not rated yet
just bought the cleaner. 2nd day to use. have cleaned the filter twice and 2nd time I put it in the water after, it would not go to the bottom of the pool, …

Power cable plug pins Not rated yet
I have 4 pins on my power cable...not sure which pins to check for power. Does anyone have a electrical diagram?

Dolphin runs for about 15 minutes then stops. Not rated yet
My dolphin runs for about 15 minutes then stops. If I unplug the cord from the timer and plug it back in it will run for another 15 minutes.

Not vacuuming Not rated yet
Dolphin runs :02 in an irregular pattern then stops.will run manually ,but does not vacuum in either mode.rubber seal on remote toggle switch is deteriorated …

Power Supply Overheats Not rated yet
My Power supply transformer gets very hot and blows fuses, have disconnected the robot, checked continuity on the switch, and still blows fuses, any assistance …

Blown Fuse Not rated yet
fuse broke when turn on. ADMIN REPLY: You have a short, possibly in the cable

Dolphin Starts and Stops Fix Not rated yet
When I start my dolphin sweep it goes for about 5 seconds and then stops. I plug into a differant socket and works fine. Then plug in same socket,stops. …

We have been w/out our Dolphin 4 for a month Not rated yet
The Leslies store held it for 2 weeks and now it has been out of their store for 2 weeks. They gave me the phone number to contact you and could not get …

Dolphin was found with roller off Not rated yet
Purchased my Dolphin last year 5-2010 and used it for 3 months and loved how well it worked and how much time it saved. This year after using it for 2 …

Dolphin power supply problem Not rated yet
on my yellow box power supply type: diagnostic dc model: 5204 250 w input ac 115 v 60hz output dc 29v 11a soon as flip switch …

when i turn the cleaner on, it immediately shuts back off, why is it doing that? Not rated yet
when i turn the cleaner on, it immediately shuts back off, why is it doing that?

Pool Robot Getting stuck  Not rated yet
Hey there we just had our pool installed last year the dolphin keeps getting stuck on the main drains. We never had the problem lasy year. ADMIN REPLY: …

Click here to write your own.

Dolphin Diagnostic Electric Supply Problem Not rated yet
I have a Dolphin Diagnostic pool cleaner . I removed the internal plug to the motor and found that the male plug pin has burnt off . Is there any …

Dolphin commander power supply Not rated yet
I purchased a dolphin the end of last season and tried to use it this year and it doesn't work. When plugged in I see it starts bubbling but doesn't move. …

Main drain  Not rated yet
We have a Dolphin Diagnostic and it keeps getting stuck on the main drain dome and is wearing the liner in that spot. Please advise what can be done I …