Home Robotics ServicesDolphin robotic pool cleaners, made by Maytronics, carry a limited warranty of 1 to 3 years depending on the model. Warranty claims go through the dealer or a service case with Maytronics, and the owner or dealer pays to ship the robot in. Out of warranty, independent shops repair Dolphins by mail, and the main replacement parts, the motor unit, cable, and power supply, cost about $150 to $350 each when they are in stock.
Last reviewed: October 2026. Prices are as listed by the sellers named, and stock status is as we found it.
Dolphin warranty
- Length by model: Poolbots lists 3 years on the Premier, Sigma, and W20, 2 years on most others, including the Escape, Quantum, Cayman, Liberty 200, and E10, and 1 year on the Nautilus Pool Up. Leslie’s lists a 2-year limited warranty on the Premium 10.
- Refurbished units: Maytronics’ US outlet says its certified refurbished Dolphins carry a 12-month limited warranty.
- Not covered: Maytronics’ US service form says the warranty does not cover damage from misuse or abuse, or wearable parts.
- To claim: the form asks for the robot’s serial number, dealer details, and proof of purchase, or a bill of sale if the robot is not registered. Returns must be pre-authorized through a service case on the Maytronics website.
- Shipping: the form says the dealer or owner pays to ship the robot in.
Buy from an authorized dealer. Maytronics’ service form asks for dealer details, and the review site The Pool Nerd reports that Maytronics requires an authorized-dealer purchase for its warranty, so a claim on a robot from an unauthorized seller may be denied.
Is yours still covered? Enter your purchase date in the robot warranty checker to see when coverage ends.
Out-of-warranty repair
- Aquaquality Pools, Westbury, New York. Sends a free FedEx label, or a shipping box set for $39.99, then diagnoses the robot and calls with an estimate. If you decline the repair, it charges a $100 bench fee and $50 for return shipping. Its page does not say it is authorized by Maytronics and carries a 2016 copyright, so confirm the fees before shipping.
- Duckies Pool Supply, Myrtle Beach, South Carolina. Describes itself as a certified Maytronics Dolphin repair center and takes mail-in repairs nationwide. It does not publish diagnostic fees, labor rates, or shipping costs.
- Replace the part yourself. Motor units, cables, and power supplies are sold as replacement parts.
- Replace the robot. Compare the repair with the price of a new robot first.
More on diagnosing faults and comparing quotes is in the robotic pool cleaner repair guide.
Parts prices
- Motor unit for the Triton, Edge, Deluxe, Discovery, Premier, and Prowler 830: $149.99 at Leslie’s, reduced from $299.99, out of stock when we checked.
- Motor unit, general Dolphin listing: $279.99 at Leslie’s, out of stock.
- Cable and swivel assembly for the DX series, Triton, Premier, and other models: $254.99 at Leslie’s, out of stock.
- Power supply with weekly timer, part 9995678-US-ASSY: $343.99 at InyoPools, in stock.
- Battery for the cordless Liberty: $1,270.85 at Poolweb, with an extended manufacturer lead time.
For comparison, Poolbots lists new Dolphins from $499 for the E10 to $1,999 for the Premier and $2,399 for the Sigma. When a part costs more than half the price of a new robot, replacing the robot may make more sense. See robot battery replacement costs for cordless models.
Frequently asked questions
How long is the Dolphin warranty?
One to three years depending on the model, with 3 years on top models such as the Premier and Sigma and 2 years on most others. Certified refurbished units carry 12 months.
Does it matter where I buy a Dolphin?
Yes. The Pool Nerd reports that Maytronics requires an authorized-dealer purchase for its warranty, and that many Amazon listings for the Nautilus are 1-year versions. Check the seller and the warranty length before you buy.
Who repairs Dolphin pool cleaners?
Dealers handle warranty claims through Maytronics, and independent shops repair Dolphins by mail after the warranty. Who repairs home robots compares the options.
Related guides
- Polaris Freedom Warranty: Length, Battery, and How to Claim
- Pool Robot Not Climbing Walls: Causes and Fixes
- Robotic Pool Cleaner Repair: Fix It or Replace It
- Polaris Robotic Pool Cleaner Repair and Warranty
- Aiper Pool Cleaner Repair and Warranty
- Beatbot Pool Cleaner Repair and Warranty
Sources
- Maytronics US: RMA request and spare parts order form
- Maytronics US: certified refurbished outlet
- Poolbots: Dolphin models, prices, and warranties
- Leslie’s: Dolphin Premium 10
- The Pool Nerd: authorized Dolphin dealers, September 1, 2026
- Aquaquality Pools: Dolphin repair
- Duckies Pool Supply: Dolphin repair
- Leslie’s: motor unit, Diagnostic 3H
- Leslie’s: motor unit for Dolphin pool cleaners
- Leslie’s: cable and swivel assembly
- InyoPools: Dolphin power supply 9995678-US-ASSY
- Poolweb: Dolphin Liberty battery
Home Robotics Services is an independent reference site. It is not affiliated with Maytronics or any dealer or repair shop named here.