Comments for Disassembling a different style (Merlin 8571) Aquabot motor

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Apr 01, 2021
Drive motor.
by: Ajay Panchal

After searching for trouble-shooting steps for aquabot pool robot, I came across your website and found this (, very useful. But before I start to open the drive motor of the robot, I would like to mention what I have done to trouble-shoot the fault as below.

I am using Aquabot Duramax Junior T RC pool robot. The robot stopped working. I started to trouble-shoot and found that a piece chipped off (of plastic cage like cover between the two impellers of the water pump ) and was interfering rotation of the water pump. Next the drive motor is not working.

Tracing the wires connecting the motor and capacitor, I drew electrical schematic of the robot and is like, Power supply OUT > drive motor IN > drive motor OUT > pump motor IN > pump motor OUT > capacitor.

I dissamble all three electrical parts (drive motor, pump motor and capacitor) from the robot and tried to run them individually.

I tried Power supply OUT > pump motor IN > pump motor OUT > capacitor, the pump motor works okay.

I tried Power supply OUT > drive motor IN (not submerged in water). Drive motor did not work.

I tried Power supply OUT > drive motor IN (not submerged in water) > capacitor. Drive motor did not work.

Power supply output 39 VAC.

Can you please advise:

Will the drive motor has to be submerged under water to work properly?

What are electrical specifications of drive motor and pump motor.

Jul 20, 2017
More pictures, please
by: jab721

This is really great!! I finally found someone actually opening the motor up. How much force will I need to open the canister? Did you put any lubricants or heat to loosen it? Is it sealed with some adhesive or is there a gasket inside that keeps it waterproof? Please provide more pictures at so I can visualize clearly how you did it. I want to attempt to disassemble my Aquabot Turbo T's drive motor but was a little leary. Your instructions are giving me confidence to go for it! Thank you.

Sep 06, 2016
Too tight..
by: Mark

My slave motor is not running (went from weak to dead fairly quick) So I was going to open it up and see if the issue was the slave or the master not sending power over. Well for get that. I used an oil filter strap wrench and some heat from a hair dryer type heat gun and no dice. With a 1/2" socket wrench turning the strap, I almost gave out of strength about when the strap slipped. I think I will just part out this Plus RC and buy a 600$ Breeze 4X4. Not as fancy but will get the job done with a lot less complexity. Mark

Jun 27, 2014
Breaking canister seal
by: Anonymous

Very nice instructions. Those canisters can be tough to open.

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