Finding the Right Replacement Part

A part that looks right can still be wrong. Sizes, materials and fixings differ by maker and by model. Match the part to your exact robot before you order.

Gather the details first

• Exact model number. One maker's advice is blunt: "check the exact model number of your robot"¹. A general name on the box or in the app may not be enough.
• Part name and number from the manual. Look for the parts list or exploded diagram in your owner's manual. Write down the number next to the part you need.
• What you see on the old part. Note its shape, its length and how many pieces there are. Take a photo of it in place before you remove it.
• Your pool surface. It matters for brushes. See brush types explained.

Why "close enough" isn't enough

• Each maker uses its own sizes, materials and fixings, so parts rarely carry across brands¹.
• The model matters, not just the maker. A service guide says to use "the correct fastener for the model"².
• A wrong part number can be the cause of a new fault. That guide says a belt "may be the wrong part number" if a noise starts after a swap².

Where to look for information

• The owner's manual. It has the part names and the steps for your model. If you've lost the paper copy, the maker's support site is the place to look. Don't rely on a manual for a different model.
• The maker's parts list or support page. It names parts by model. Check the model on any other page against it.
• An authorized service center. One FAQ points owners there when a robot acts up and the manual doesn't settle it³.
• The robot itself. Look for a label on the body or under a panel. The manual says where yours is, if it shows it.

Questions to ask before you pay

• Does the listing give my exact model number?
• Is it the maker's part, or a copy? One maker says original parts "generally provide a fit that matches the initial design"¹.
• Will I need other parts at the same time, such as screws or a clip set?
• Is it sold as a single piece or a kit? Some pieces are sold on their own. One guide notes that individual idler pulleys are available as replacement parts². Others come as kits. Another maker notes that most makers sell replacement brush kits⁴.
• What happens to my warranty if I fit a part from somewhere else? Read the warranty terms.

Check parts supply before you buy a robot

• One maker advises you to "Verify that replacement brushes, filter baskets, and drive tracks are readily available before committing to a model"⁴.
• That helps if you're still choosing a model.

When the part arrives

• Compare it with the old one before you fit anything.
• Count pieces and check the clips or fixings.
• Fit it only as your manual shows, with the unit unplugged and out of the pool.
• If anything doesn't line up, stop and ask the maker's support team.

Not sure what has failed? Start with the overview of wear parts.