Maytronics Dolphin S100

Maytronics Dolphin S100 exploded view & spare parts

This page gives you a complete exploded-view diagram of the Maytronics Dolphin S100 robotic pool cleaner, with every component individually numbered so you can identify and order the exact genuine spare part you need. Whether your S100 needs a new set of tracks, a replacement filter panel, or a fresh power supply, the diagram and part listings below make the process straightforward — no guesswork, no wasted orders. Browse the sections below to understand which parts wear first, how often to replace them, and why sticking with genuine Maytronics components is the smartest long-term choice for your robot.

How to use the numbered diagram to find your part

The exploded-view drawing on this page breaks the Dolphin S100 down into every sub-assembly and individual component, each tagged with a unique reference number. Start by locating the area of the robot that needs attention — for example, the drive system at the bottom, the filter compartment in the centre, or the cable entry point at the rear. Match the reference number in the diagram to the corresponding line in the parts list directly below it, confirm the part name and description, and add it to your basket. If you are unsure whether you are looking at the right component, the part numbers shown here correspond directly to Maytronics’ own catalogue references, so you can cross-check against your robot’s documentation at any time.

Main replaceable parts on the Dolphin S100

The Dolphin S100 is built around a compact but complete set of serviceable assemblies. The rubber tracks grip the pool floor and walls and transfer drive from the internal motors to the surface. The active brushes — including the brush rollers, brush adaptors and brush bushings specific to the S100 — dislodge dirt and algae ahead of the suction inlet. The filter panels and filter bags trap fine and coarse debris inside the filter basket; the S100 accepts 70-micron cartridge filters for finer filtration when needed. The impeller creates the water flow that pulls debris into the filter, while the motor unit provides sealed propulsion for both drive and water flow. The floating cable — kept buoyant by cable floats along its length — delivers power from the supply unit without tangling on the pool floor. The power supply unit converts mains electricity to the low-voltage DC the robot needs. Finally, the handle allows easy lifting and positioning of the robot, and the caddy keeps the cable neatly coiled and the robot safely stored between cleaning cycles.

Common wear items and when to replace them

Tracks are the part most pool owners replace first. Constant contact with abrasive pool surfaces causes the rubber to stretch, crack or slip off the drive wheels, which reduces climbing ability and cleaning coverage — inspect them each season and replace them as a pair to keep the robot balanced. Brushes wear down gradually; if you notice the S100 leaving patches of algae or grit on pool walls that it previously cleared without difficulty, the brush rollers or their supporting gear components are likely due for renewal. Filter panels and bags should be rinsed after every cleaning cycle and replaced once the mesh shows tears, persistent clogging, or a reduction in suction — typically after one to two seasons of regular use. The impeller can become clogged with hair and fine debris, and the seals around it can degrade over time; a drop in suction power is the clearest signal. The floating cable and its connector plug are worth inspecting annually for any cracking, kinking or corrosion at the Amphenol connector end, as a damaged cable can cause intermittent power loss or, in serious cases, a tripped safety circuit in the power supply.

Power supply, cable and caddy — the support system

The Dolphin S100 power supply unit does more than simply deliver electricity; it also manages the robot’s cleaning cycle timing and monitors for fault conditions. If the S100 stops mid-cycle, runs erratically, or fails to start, the power supply is often the first component to investigate after ruling out a cable fault. Replacement power supplies for the S100 are available as complete units and should always be sourced as genuine Maytronics parts to ensure the correct voltage, cycle programming and safety certifications. The floating cable connects the power supply to the robot via a sealed Amphenol plug; the O-ring at the connector provides the watertight seal and should be checked whenever the cable is disconnected. The caddy is often overlooked as a spare part, but a broken wheel, cracked frame or missing caddy cover can make handling the robot — and its wet cable — awkward and potentially damaging to the unit.

Why genuine Maytronics parts matter for your S100

The Dolphin S100 is an engineered system in which every component is sized and rated to work with the others. Genuine Maytronics spare parts are manufactured to exactly the same specifications as the original components, which means correct fitment, reliable performance and no risk of voiding your warranty. Third-party tracks that are fractionally too narrow, brushes with the wrong bristle stiffness, or a non-OEM impeller with slightly different blade geometry can all reduce cleaning efficiency or accelerate wear on adjacent components. At poolparthub.com every part listed on this page is a genuine Maytronics original — the same part that left the factory with your S100 — so you can order with confidence and get your robot back in the water as quickly as possible.