Question 1

after the latest update, my s9+ won't connect to wifi. it just blinks red on the clean button and the app can't find it.

Accepted Answer

DIAGNOSIS A failed firmware update or network settings corruption. The solid red light on the Clean button indicates a Wi-Fi connectivity fault. FIX Perform a factory reset on the robot. Press and hold the SPOT, DOCK, and CLEAN buttons simultaneously for 10 seconds until the robot plays a tone. Release. This resets network settings. Re-setup the robot in the iRobot app as if new. IF THAT DIDN'T WORK Ensure your router is broadcasting a 2.4 GHz network. The s9+ does not connect to 5 GHz bands. Temporarily disable any firewall or access point isolation (client isolation) settings on your router during setup. HEADS UP After a factory reset, you must also delete the old robot from your iRobot app account before attempting the new setup, otherwise the app will show conflicts.

Question 2

why does my s9+ keep trying to eat my rug tassels? it gets stuck every single time.

Accepted Answer

DIAGNOSIS The s9+ uses a rubber dual brushroll design that actively pulls in debris. Loose rug fringe and tassels are physically drawn into the brushroll cavity, causing immediate tangles and motor stall. FIX Create a Keep Out Zone in the iRobot app. On your Smart Map, draw a zone around the rug that extends at least 8 inches inward from the fringe. The robot will avoid this entire area during cleaning. IF THAT DIDN'T WORK Physically block access. Use small, flat magnetic boundary strips (the Virtual Wall type) placed just before the fringe. The robot will detect these and turn around before contacting the tassels. HEADS UP The s9+ lacks a traditional bristle brushroll that might spit out fringe. Its rubber extractors will always ingest and tangle with loose strings, which can damage the motor over time.

Question 3

the brush keeps stopping during a clean job and the app says 'clean base bin extraction issue 0'. what does that mean?

Accepted Answer

DIAGNOSIS This alert means the robot's extractors stopped because the Clean Base failed to engage its suction during an expected empty cycle, often due to a communication hiccup. FIX Cancel the current job from the app. Manually place the robot on the Clean Base. Listen for the emptying cycle to start. If it does not, unplug the Clean Base for 30 seconds, then plug it back in. Restart the cleaning job. IF THAT DIDN'T WORK Check the robot's bin is fully seated. Remove it and reinsert it until it clicks. Ensure the Clean Base's bag is properly installed and not overfull (the fill line should not be visible). HEADS UP This is often a transient software error. Ensure both the robot and Clean Base firmware are updated in the iRobot app under Settings > Product Settings.

Question 4

robot says 'charging error 8' and won't dock properly with the clean base.

Accepted Answer

DIAGNOSIS Error 8 indicates a communication failure between the robot and the Clean Base. The metal charging contacts on either the robot or base are dirty or misaligned. FIX Power off and unplug the Clean Base. Clean the three metal charging contacts on the front of the base with a dry cloth. Clean the corresponding contacts on the rear bumper of the robot. Ensure the base is on a hard, level surface with 1.5 feet of clearance on each side and 5 feet in front. IF THAT DIDN'T WORK Check the physical alignment. The robot's bumper should make light contact with the base during docking. If the base is on a thick rug or is tilted, the contacts cannot meet. Relocate the base to a hard floor. HEADS UP Using aftermarket accessories like bumper skins or thick protective stickers can physically prevent the contacts from touching, causing Error 8.

Question 5

my s9+ is missing huge spots in the middle of the room, it just goes around them in a weird square pattern.

Accepted Answer

DIAGNOSIS This is a navigation failure. The vSLAM camera or the infrared sensor on the top is dirty, or the room has low light, disrupting the robot's spatial mapping. FIX Clean the circular lens of the vSLAM camera on top of the robot with a microfiber cloth. Clean the infrared sensor window next to it. Ensure the room has adequate lighting (at least 40 lux) for the camera to see ceiling features. IF THAT DIDN'T WORK Delete the current Smart Map and create a new one. In the iRobot app, go to the map view, select the map, and choose 'Delete Map'. Run a clean-all cycle in mapping mode to generate a fresh, accurate map. HEADS UP Highly reflective floors, very dark floors, or identical repeating patterns (like large square tiles) can confuse the camera and cause this mapping behavior.

Question 6

roomba s9+ says 'bin full' right after i empty it and put it back on the base.

Accepted Answer

DIAGNOSIS The bin full sensor is either blocked or the microswitch on the bin door is stuck. The robot uses an optical sensor inside the bin port to detect debris. FIX Remove the bin from the robot. Open the bin door and clean the entire interior, including the small clear plastic sensor window on the top interior wall. Use a dry cloth. Ensure the rubber flap on the bin door moves freely and is not folded. IF THAT DIDN'T WORK Manually reset the bin status. On the robot's screen, press the three-line menu icon. Navigate to Settings > Reboot Robot. After reboot, the bin status should clear if the sensor is clean. HEADS UP Using third-party bags in the Clean Base can sometimes cause finer dust to bypass the bag and coat this sensor, requiring more frequent cleaning.

Question 7

the self-empty base on my s9+ is super loud and sounds like it's straining every time it empties, is that normal?

Accepted Answer

DIAGNOSIS This is not normal operation. The Clean Base suction motor is either obstructed or the filter is clogged, causing it to work harder and louder. FIX Remove the dust bin from the robot. Empty the Clean Base's internal dirt compartment. Remove the blue reusable filter from the top of the Clean Base. Tap it clean over a trash can, then wash it with cold water. Let it dry completely for 24 hours before reinstalling. IF THAT DIDN'T WORK Check for an obstruction in the Clean Base's suction pathway. Remove the dirt compartment and visually inspect the plastic air channel leading to the motor for trapped debris like hair or twist ties. HEADS UP Never run the Clean Base without its filter installed. This can permanently damage the suction motor and will not resolve the noise issue.

Question 8

my roomba s9+ keeps getting error 31 and won't go back to the base, it just sits there beeping.

Accepted Answer

DIAGNOSIS Error 31 is a cliff sensor failure. One or more of the four infrared cliff sensors on the underside are either dirty or malfunctioning, causing the robot to think it's on a ledge. FIX Power off the robot. Turn it over and clean all four black cliff sensor windows on the bottom with a dry microfiber cloth. Clean the bumper area around them. Remove any protective films. Place the robot on the floor and power it on. IF THAT DIDN'T WORK The robot may need a hard reset to clear the error. Press and hold the CLEAN button for 20 seconds until all lights turn off. Release, then press it once to restart. If error 31 persists, the sensor array may be faulty and requires service. HEADS UP This error is frequently triggered by dark floors or very high-pile rugs that absorb the infrared signal. The robot will not run with an active Error 31 for safety reasons.

iRobot Roomba s9+ Self-Emptying Robot Vacuum

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