Is a Refurbished Roomba Combo j5 or j5+ Worth Buying?

iRobot Restored. iRobot’s Restored details (opens in a new tab) say “all restored robots come with a standard 90-day limited warranty,” which “will not cover cosmetic damage or scratches.” Within 90 days iRobot troubleshoots and sends any parts needed; after that, “the customer will have to purchase a part or replacement if necessary.” The article doesn’t mention a return window, and we found no U.S. irobot.com refurbished store.

eBay. iRobot says its refurbished robots sold through eBay “also have a 2-year extended warranty through Allstate,” and tells buyers to look for the Blue Checkmark, a two-year warranty in the listing, and shipping from Hazleton, Penn. eBay’s Refurbished program (opens in a new tab) gives Certified items a two-year warranty from the purchase date and 30-day free returns, “subject to certain exceptions.” “Seller Refurbished” listings are not part of eBay’s program. The sources also conflict on the remedy: iRobot says eBay buyers may contact Allstate after 90 days “for a refund only,” while eBay’s warranty page (opens in a new tab) lists “100% parts and labor coverage.”

Woot. iRobot says “all woot Refurbished Roombas are direct from iRobot.” Woot’s warranty policy (opens in a new tab) says a manufacturer warranty supersedes Woot’s own, which excludes batteries, so read the warranty line on the listing.

Amazon. Amazon says most Renewed items include a 90-day return period under the Amazon Renewed Guarantee, and Renewed Premium items a 365-day one; the product page shows which applies. On October 25, 2026, one Amazon listing for a refurbished Combo j5+ was labelled “Refurbished - Excellent,” “Sold by: iRobot Store,” with a “90-day Amazon Renewed Guarantee.” iRobot’s Restored article names only eBay and Woot, so whether iRobot’s own 90 days also applies to Amazon purchases isn’t stated.

For how these programs compare across brands, see our refurbished robot vacuum warranty guide.

The owner’s guide says: “You must register your product in the iRobot Home App and complete a mapping run before using your Combo Bin.” iRobot’s mopping guide adds that “your Combo Bin will need to be activated” and that the app walks you through it. The guide we read is iRobot’s European edition; we couldn’t find the U.S. edition. Obstacle detection also has to be enabled in the app before it works, according to iRobot’s product pages.

That makes the account handover more important than on a vacuum-only robot:

• The previous owner must unlink it. iRobot’s reset article (opens in a new tab) says removal happens in iRobot Home (Classic): “Product Settings ➔ About (robot name) ➔ Remove Device from Account.” A reset with the robot’s buttons leaves the cloud data, app data, and account associations intact.
• Use the right app. The iRobot Home (Classic) (opens in a new tab) listing covers Roomba Combo j series robots. The newer Roomba Home app is for Roomba 100 to 800 and Mini series robots sold after March 2025.
• Test early. iRobot doesn’t document whether bin activation carries over to a new owner or needs iRobot’s cloud. Register, map, activate, and run a mop job in the first days of your return window.

The company behind the app. On December 14, 2025, iRobot began a pre-packaged Chapter 11 process (opens in a new tab) and said it expected “no anticipated disruption to its app functionality.” On January 23, 2026, it completed the sale (opens in a new tab) and became “a privately held company wholly owned by Picea,” with a separate iRobot Safe Corporation responsible for protecting U.S. consumer data. That release doesn’t mention the app, and iRobot hasn’t published an end-of-support date for the Classic app. Robots that depend on an app can lose features when its cloud ends: when Neato’s cloud was phased out (opens in a new tab), Neato said its robots would “continue to function manually.” Whether a Combo j5 could still mop in that situation isn’t documented, so weigh it as a long-term risk.

Mop consumables. iRobot says to rinse the pad after every job and replace it after 30 washes; air dry it, and don’t tumble dry, iron, dry-clean, or bleach it. Replace the wick cap “if dirty or shows wear,” or if it’s damaged or dispensing water too fast. iRobot’s mopping replenishment kit (opens in a new tab) (item 4822643) has two pads and four wicks, fits the Combo j5 and Combo i5, and is not compatible with the Combo j7+ or Combo j9+. iRobot’s warranty excludes cleaning pads and cleaning solutions.

Vacuum consumables. Replace the high-efficiency filter every 2 months. For brushes, iRobot’s sources differ: its j series care schedule (opens in a new tab) says 6 to 12 months, while the j7+ owner’s guide says 12 months, and we couldn’t read the interval reliably in the Combo j5 guide. Replace them when they show wear. iRobot’s Clean Base refill kit lists the j7+, i3+ EVO, and i7+, not the Combo j5+, so confirm bag compatibility before ordering.

Battery. iRobot’s runtime article (opens in a new tab) says j series robots should run at least 75 minutes on a full charge on hard floors; a low-battery stop before that means the battery may need replacing. Run it in vacuum mode, early in your warranty or return window. iRobot’s replacement battery page lists e, i, and j series robot vacuums and excludes the Combo j7+, j9+, and 10 Max, but doesn’t name the Combo j5, so ask iRobot support before buying one. The two warranty sources also conflict on battery coverage: iRobot’s U.S. article includes the battery in the one-year term for new robots, while an older global iRobot document lists six months. Ask the seller whether its warranty covers the battery.