Dolphin S-200 pooped out

[doofus57]

I bought my Dolphin S-200 in Feb 2022 and made the mistake of leaving it in the pool. I won't make that mistake again.

Today I noticed when started, it will run for less than a minute and then stop. If I restart it, the same thing happens. I opened it up and found the case was dry. Both motors will spin, but the impeller pump motor turns stiffer than I would think (even for a DC motor) and there's evidence the motor seal started leaking recently (see photo).

I suspect the circuit board monitors motor amperage and turns the unit off if the amperage exceeds their spec. I'm theorizing the impeller pump motor stiffness would cause this safety trip. I can get a new motor for $170.

Since I left it in the pool, the cable is looking pretty rough, but I've found replacements on ebay for about $60.

I don't mind spending $230 to fix it, and am curious what your vote would be - fix or replace???

If replace, any suggestions? Thanks in advance for your opinions.

 

[Flying Tivo]

We need a bigger picture. You can disassembl the motor unit to see whats going on.
Have a look here. Time for Maintenance of "Robotina" Maytronics S200

 

[TimmyD7]

I have one with similar but not quite as pronounced bad behavior. I am planning on doing a voltage check on my cord, thinking that there is some internal protective circuitry that may be causing a premature shutdown/incorrect operation from simply not getting a 12VDC input due to insulation fault on a worn cord... I am just planning on shortening mine by a few feet as all the wear is at the end and seeing if the behavior changes. Good luck to you!