I've had this M600 since... I think 2021, and overall, I haven't had too many problems. I did have to replace the power supply last year as the original one just refused to even turn on. I did also replace the blue cable last year as the original one had worn out enough that I spent more time trying to keep it untangled than anything else. When I closed the pool last year, the robot was working fine and was stored in my garage on its caddy and under the cover. When I pulled it out this year, I placed it in the pool, turned it on, and everything seemed good. When I came back to check on the robot, the power supply's ring LEDs had turned red and the robot was no longer moving. (I don't know if the robot had any LED enabled.) I power cycled the power supply, and after that, the power supply seemed fine, but the robot didn't move anymore. Awkwardly, I cannot find a single mention of what a power supply LED being red actually means. I noticed that my newer PSU states that it is version 4, so it might have additional functionality compared to what was denoted in the manual. Also, the manual is probably just bad. I saw the troubleshooting step on inability to climb the walls, and there wasn't a single note about the foam climbing wheels. Seriously!?
Anyway, I stumbled across an article that was from... I believe INYOpools that talked about steps to verify the power supply, and they suggested to make sure that it was actually outputting 29v. (More on that in a second.) I checked my power supply, and it was outputting around 26.5v. When this happened, the robot would just sit there lifeless just as it did in the pool. I had my old power supply still, so I took off its blue cable Amphenol connector and wired it up to a variable DC power supply. I set the power supply to 29v and when I turned the power supply on, the LED on the robot actually lit up for a couple seconds... and then turned off. That repeated for a bit and I just turned the power supply off. Now, I know that there are actually three cables as part of the connector, so my assumption was that I was providing the power to the robot but not the communication that it needs.
With all of that, I decided to order another power supply, which arrived today. However, much to my dismay, the robot still refuses to power up. When I was trying to set it up via the MyDolphin app, it kept showing the power supply and telling me that I needed to connect it to the robot properly (connect to the robot, put the robot in the pool, turn it on for 30 seconds). I checked the voltage on this power supply, and it is also 26.5v. So, this made me curious... what is the actual start-up process for the M600. Is 26.5v normal during the initial communication phase? That aforementioned INYOpools article was pretty blunt that sub-29v was the sign of a bad power supply, but that does not seem to be accurate. I know when I'd start up the robot in the past, it was pretty normal to push the button and then have maybe a 5-10 second delay between that and the LED on the robot lighting up, so there definitely seems to be some aspect of communication. Also, when you'd switch cleaning modes, it did something similar where it would essentially stop for 5-10 seconds before starting back up again. I tried to call up Maytronics and inquire about voltages and such, but I'm sure you can guess how that went.
So, I was wondering if anyone might know more about how a newer Dolphin unit (specifically the M600 that I have) actually works during start-up. I'm going to be tearing the robot apart to double-check the connections once it dries out. It could certainly be the motor unit that's bad, but I really want to confirm that to the best of my ability.
I appreciate any help that you can provide!
Anyway, I stumbled across an article that was from... I believe INYOpools that talked about steps to verify the power supply, and they suggested to make sure that it was actually outputting 29v. (More on that in a second.) I checked my power supply, and it was outputting around 26.5v. When this happened, the robot would just sit there lifeless just as it did in the pool. I had my old power supply still, so I took off its blue cable Amphenol connector and wired it up to a variable DC power supply. I set the power supply to 29v and when I turned the power supply on, the LED on the robot actually lit up for a couple seconds... and then turned off. That repeated for a bit and I just turned the power supply off. Now, I know that there are actually three cables as part of the connector, so my assumption was that I was providing the power to the robot but not the communication that it needs.
With all of that, I decided to order another power supply, which arrived today. However, much to my dismay, the robot still refuses to power up. When I was trying to set it up via the MyDolphin app, it kept showing the power supply and telling me that I needed to connect it to the robot properly (connect to the robot, put the robot in the pool, turn it on for 30 seconds). I checked the voltage on this power supply, and it is also 26.5v. So, this made me curious... what is the actual start-up process for the M600. Is 26.5v normal during the initial communication phase? That aforementioned INYOpools article was pretty blunt that sub-29v was the sign of a bad power supply, but that does not seem to be accurate. I know when I'd start up the robot in the past, it was pretty normal to push the button and then have maybe a 5-10 second delay between that and the LED on the robot lighting up, so there definitely seems to be some aspect of communication. Also, when you'd switch cleaning modes, it did something similar where it would essentially stop for 5-10 seconds before starting back up again. I tried to call up Maytronics and inquire about voltages and such, but I'm sure you can guess how that went.
So, I was wondering if anyone might know more about how a newer Dolphin unit (specifically the M600 that I have) actually works during start-up. I'm going to be tearing the robot apart to double-check the connections once it dries out. It could certainly be the motor unit that's bad, but I really want to confirm that to the best of my ability.
I appreciate any help that you can provide!
