Maytronics S200(Robotina) Maintenance 5 years.

[Flying Tivo]

It sure does feel like yesterday. Robotina quit moving but i could hear the motor running so i figured it was time to replace wear parts. Which i had order about a year ago but had not changed. I will link to an older thread in which i did small maintenance(2022) mainly to assure there was no water ingress to the motor housing due to al the post about robots dyeing.

Time for Maintenance of "Robotina" Maytronics S200

A little history, Robotina was bought 3 years ago from a seller on Ebay. He listed it as a Refurbished unit and got about 200 bucks savings from a new one. At first few months Robotina would live 1-3 days underwater. I got lazy and let her live 24/7/365 except for few minutes while wash down and...

www.troublefreepool.com

Lets get stared(lots of Pics)
Started the disassembly process for a full tear down, here are the replacement parts. Around $150.


Robotina itself


The wear and tear of 5 years.


Motor is out.


Wear on the main gear of the drive unit




The insides


Old and new front right main gear and bushings.



Front left main gear, old and new.

Front brush assembly old and new.



Continued on next post.

 

[Flying Tivo]

Continued,
Rear brush and wheels



Tracks old and new.


Rear Flapper old and new.


Bottom flaps


Now for the main attraction, the drive unit. So after 2 years no water ingress except??????




The silicone that was applied to the large O-ring of the drive unit worked very well.



And now(drum roll), after the 2022 maintenance the led light quit working like 24 hours after going
in the water. There was a very small leak from the Plastic window which is sealed with an o-ring.
But im very lucky because it was just like a drop itself which corroded the led and some of the
led board components(short).


I unscrewd the nut and the o-ring was very stiff and flattened, so i changed it and lubed it up.
Sent an email to Marina Pool and Spa to se if they have a spare from a dead robot.



As for the main drive motor there are small carbon dust which means the brushes are wearing.





Continued

 

[Flying Tivo]

The main impeller motor had some slight corrosion on the outside on 2022 but i did not disassembled it that time.
So had to do it this time around. Removed the O-rings and lubed up with lots of silicone.


Main drive gear, old and new. Lots of wear.


Dont know if i ordered the wrong front wheel, but the cover would interfere with the 4 pegs so
i had to cut them with a hot knife. very easy.





All finished up. Lets hope for another 5 year and remember my robot lives 24/7/365 in the water.



She's ALIVE!!!

 

[Flying Tivo]

Here is a close up of the Led board.

 

[stephenson]

Great tutorial!

My recent effort is at: Another Maytronic (Pentair Warrior SE) Story

My biggest gripe about the device is how the cord tangles while running ... I've tried lubricating the cable with dielectric grease where it enters the power transfer connector, but that didn't help. is there a better solution?

 

[Flying Tivo]

is there a better solution?

I only used silicone to seal the ends were the cord exits the swivel and it still tangles.

 

[stephenson]

Yeah - I tried a couple of different lubes, but my sense is most of the friction comes from the two pins connecting to the circular electrical connectors.

 

[Flying Tivo]

most of the friction comes from the two pins connecting to the circular electrical connectors.

The purpose of adding silicone was to keep it dry, my last connector got chewed by the dog and also water entered the swivle and corroded the tracks and pin of the connector.