By Shaz · Updated September 2026

Dolphin Pool Cleaner Warranty Explained (What's Covered)

Every new Dolphin robotic pool cleaner comes with a Maytronics manufacturer warranty — but the length and process differ by model range, region and retailer, and a few easy mistakes can void it. Here's how it works in practice.

Typical coverage by range

Entry and mid-range residential models generally carry a 24-month warranty (for example the S100 and S300, per their official spec sheets), while premium M-Line models carry longer coverage — the M400 lists 3 years and the M700 4 years plus the Maytronics For Life programme. US Nautilus models sold on Amazon typically include a 2-year warranty. Always confirm the term on your specific listing or invoice — regional distributors set their own terms.

What's covered

Manufacturing defects in the motor unit, electronics, power supply and cable under normal residential use: a motor that fails, a control board fault, a power supply that dies. Maytronics repairs or replaces through its authorised service network.

What's not covered

• Wear parts — filters, brushes, tracks and belts are consumables, like tyres (see the parts guide).
• Chemical and sun damage from leaving the robot permanently in the pool or storing it in direct sun — see can you leave a Dolphin in the pool.
• Opened motor units. The motor unit is sealed; opening it yourself ends the warranty. DIY stops at the impeller cover, brushes, tracks and filters.
• Commercial use of residential models. Running a residential robot in a hotel pool typically voids residential terms — that's what the commercial Wave range is for.
• Grey imports — a robot bought from another region may not be honoured by your local distributor. Buy from Amazon in your marketplace or an authorised local dealer.

How to claim

1. Keep your purchase invoice — it's the warranty document.
2. Rule out the simple stuff first with our troubleshooting guide; many "faults" are a clogged filter.
3. Contact the seller (Amazon or dealer) or the Maytronics service centre for your country — our worldwide guide lists dealer availability by region.
4. Registered robots get processed faster: register at the Maytronics website or through the MyDolphin™ Plus app after purchase.

Models in this guide:

• Dolphin M400 — full review & specs
• Dolphin M700 — full review & specs
• Dolphin S300 — full review & specs

Browse all Dolphin models or see every comparison.