Support answer · Use & Maintenance
What is the Dolphin Nautilus EON 120d cordless robotic pool cleaner?
Short answer: The Dolphin Nautilus EON 120d is a cordless pool robot that cleans floors, walls, waterline, steps, and ledges as shallow as 8 inches.
Based on Maytronics support, updated 2026-09-23, rewritten by Poolbots' pool experts. Applies to 2 models. Parts that fix it are below.
The answer
What to know.
The Dolphin Nautilus EON 120d is a cordless robotic pool cleaner made by Maytronics. It cleans the pool floor, walls, waterline, and steps, plus shallow ledges in as little as 8 inches of water. There’s no cord to manage.
Applies to: Dolphin Nautilus EON 120d and Dolphin EON 120d.
Source: Maytronics support. Same steps and facts, rewritten for clarity; the videos and illustrations are Maytronics' own.
Replacement parts
Parts that fix this.
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This answer on your robot.
Maytronics tags this answer for the 2 models below.
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