What do you do when your Maytronics Dolphin Pool Cleaners stops running or there are no lights on the Power Supply? This guide shows you how to troubleshoot the electrical circuits of the Maytronics Dolphin Pool Cleaners so you can isolate your problem and replace the failed parts or parts. Our primary tool for testing these electrical circuits is a multimeter/voltmeter so we will first cover some of the basics of how to use a multimeter.
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Joel Posted: 12/8/2020
Model 9995678 power supply, Power light comes on steady, no mode selection lights come on any longer. Ran the tests recommended and no DC voltage comes out the amphenol plug or wires into back of plug. Any boards or internal fuse etc. replacable?Reply
InyoPools Product Specialist Matt S. Posted: 12/9/2020
The only replacement parts I could find for the 9995678-US-ASSY were the Amphenol socket, Amphenol socket cover, and the black cable.Reply
Don Posted: 9/8/2020
I ran diagnostic tests on my Maytronics power supply, P.No. 9995670, PD 5012, SN HG5012A10956 The power outlet, and supply cable test good, 120 v. When first powered on, the blue lights come on, and 29 v register on the DC out. After 2.5 minutes, the power light goes out, and the DC voltage drops to .01, then fades to 00. It will not power back on, unless the power cord is disconnected from the supply for 15 sec or so. Once powered back on, the same cycling happens, lights stay on for 2.5 mins or so, power 29v on DC out, then fades to 00 again. Does this indicate that a new power supply is needed? The DC out plug has continuity.Reply
InyoPools Product Specialist Matt S. Posted: 9/10/2020
It sounds like you have a power supply failure. You can try replacing a couple of the boards in the box, but the endgame is almost always getting a new power supply within a month or two. the whole power supply is the 9995670-US-ASSY. The power supply PCB for your power supply, p/n# 9995453LFReply
Gary Mclees Posted: 7/26/2020
my power light switch will light up but the 1 2 3 cycle lights will not come on.Reply
InyoPools Product Specialist Matt S. Posted: 9/3/2020
What is the part number of your power supply? If you do not have that, what is the model of Dolphin cleaner you own?Reply
Rick Posted: 7/18/2020
13 year old Dolphin M4 Supreme suddenly stopped working Power supply lights up and I can select any of the three weekly programs, but the motor never starts either in the water or on dry land. Troubleshooting: Amphenol plug (3 pins) DC voltage: 28, 26 and 1.9 for the different pin combinations End of cable going to motor (3 pins): 28, 26 and 1.9 for the different pin combinations Resistance of cable: 0.9, 0.6 and .OL (open) for the 3 different wires Not quite sure how to interpret the voltage on the amphenol plug. Looks like one of the wires in the cable is broken. What do you think? Just replace the cable or is the power supply bad as well? Thanks.Reply
InyoPools Product Specialist Matt S. Posted: 9/10/2020
It appears you found the issue, the wire is broken and the resistance reading is "open." The "open" reading means there is no circuit continuity; I presume you need a new cable. The Dolphin Supreme M4 uses the 9995873-DIY.Reply
Anonymous Posted: 6/29/2020
I am not getting any voltage out of the unit. I have a more recent unit, so I seem to see a fuse solded to the board. Can I replace that fuse or do I have to replace the whole board ? ThanksReply
InyoPools Product Specialist Matt S. Posted: 9/23/2020
What is the part number of the power supply?Reply
CDS Posted: 5/26/2020
Hi. I need to replace my power pack 995675. Is power pack 995670 compatible?? Thanks!!Reply
InyoPools Product Specialist Matt S. Posted: 10/23/2020
You are missing a '9' at the beginning of both of those part numbers. The correct replacement for your cable is the 9995675-US-ASSYReply
LEP Posted: 5/23/2020
Blue light on power source comes on. I have checked all of the cables everything seems fine. Cleaning unit itself is not coming on. Figuring possibly a blown motor?Reply
InyoPools Product Specialist Matt S. Posted: 10/23/2020
Yes, if the motor is receiving power but still is not moving, you have a blown motor. What is the model name or the serial number of your Dolphin cleaner?Reply
Anna Posted: 5/4/2020
Mine worked until it just stopped yesterday. It comes on moves for a second than stops, moves backwards for a second than stops until I hit reset. Can anyone tell me what to do?Reply
InyoPools Product Specialist Matt S. Posted: 10/27/2020
You need to begin the troubleshooting process, which is what we are highlighting in the above guide.Reply
Andrew Barrett Posted: 4/22/2020
I have followed guide and there is power into controller. The internal fuse is fine but it seems it wont turn on. The power button doesn't light up and no voltage across the four cable outputReply
InyoPools Product Specialist Matt S. Posted: 4/24/2020
Then it sounds like your transformer is bad if there is no power distribution at all.Reply
Rick Bledsoe Posted: 2/8/2020
Push power button blue light comes on then it goes offReply
InyoPools Product Specialist Matt S. Posted: 2/10/2020
Hello - the guide provides some pretty in-depth troubleshooting regarding the power supply. Have you gone through any of the steps mentioned above?Reply
Anonymous Posted: 5/18/2019
My power supply fell in the water and everything stopped working. I bought a new power supply and it still doesn't work. The light is no illuminated upon plug in. I emailed the company a week ago and have heard nothing. My pool is a mess. Desperate for advice.Reply
InyoPools Product Specialist Matt S. Posted: 5/20/2019
Have you tried replacing the blue cable's Amphenol plug that inserts into the power supply?Reply
Pablo Posted: 12/20/2018
I followed all the steps and ensured 29V was going to motor. I replaced motor, but still having the same issue. Runs one way for 2-3 seconds, back for about 2-3 seconds. Then stops and nothing else. Any ideas? I have emailed Maytronics and am waiting for a response. I will update if I hear anything.Reply
InyoPools Product Specialist Robert M. Posted: 1/3/2019
Hello Pablo - We'd be glad to assist you. What is the model of your Maytronics cleaner?Reply
Mundavian Posted: 2/17/2019
I have the exact same problem with my M500. Runs in one direction for a few seconds, stops, back again for a few seconds, stops. Doesn't run again. Thought this was a top of the line unit. Any suggestions? thanksReply
ky Posted: 4/22/2020
hi there, i have the same problem. did you ever find a fix? Thank You !Reply
Franco Russo Posted: 5/2/2019
hello. I have the same problem. It's starts, go in one direction, stop, go back, stop. I think a factory reset can be the solution. Do you know how do factory reset?Reply
InyoPools Product Specialist Matt S. Posted: 5/6/2019
Unfortunately, Dolphin cleaners do not have a factory reset function.Reply
InyoPools Product Specialist Robert M. Posted: 2/18/2019
Hello Mundavian - The Dolphin cleaners do not operate well when the water is cold. Some of the manuals state that they will not work when the temp is below 54°. If that's not your problem, you may have a bad motor. You can use the troubleshooting tips in the guide above to diagnose the problem.Reply
InyoPools Posted: 8/16/2018
Hello Tim - We contacted Maytronics to see if they had any more tips. They responded with "Best thing would be to have the consumer call into our customer service department and they would be able to walk them through a couple of trouble shooting steps. They can call 1-888-365-7446 x 1".Reply
Tim Posted: 8/16/2018
Dolphin M3 Supreme. Had 29 DC at motor plug, so I replaced motor. Still have 29 DC, but Dolphin still does not move. Tracks manually move with a little resistance. Does not seem to go through diagnostic (upside down). Just curious if there are any other trouble shooting options.Reply