my roomba i3+ evo keeps getting stuck under my couch, anyone else have this issue?

Diagnosis

The iRobot Roomba i3+ EVO utilizes a combination of tactile bumper sensors and infrared cliff sensors to navigate, but it lacks the advanced LiDAR-based "gap detection" found in higher-end models. This means the robot calculates its height based on its physical chassis (approximately 3.6 inches) and assumes that if it can enter a space, it can exit it. The "stuck" scenario occurs when the robot enters under a couch that has a slight downward slope or a sagging middle section, effectively "wedging" the top of the robot against the underside of the furniture. Furthermore, the i3+ EVO's cleaning brushes can sometimes snag on low-hanging couch fabric or decorative "dust ruffles," pulling the robot deeper into the underside of the furniture until the drive wheels lose traction on the floor. You can confirm this is the issue if the robot reports "Error 15: Robot is stuck" or "Error 16: Please move the robot to a new location" specifically when it reaches the perimeter of your living room furniture.

How to Fix It

To permanently resolve this without physically altering your furniture, you must implement digital or physical boundaries. Follow these precise steps:

1. Open the iRobot HOME App on your mobile device and ensure your i3+ EVO is connected to your local 2.4GHz Wi-Fi network.
2. Navigate to the "Map" tab from the main dashboard. If you have not yet completed a "Mapping Run," you must run the robot until it has generated a complete floor plan of your home.
3. Select "Manage Maps" and then select the specific map where the couch is located.
4. Tap on "Keep Out Zones." Use your finger to draw a rectangular boundary precisely over the area where the couch is situated. Ensure the zone extends at least 2 inches beyond the actual footprint of the couch to prevent the robot from attempting to "peek" under the edge.
5. Save the map and run a new cleaning cycle. The robot will now treat that coordinate as a wall and will not attempt to enter the space.
6. If you prefer a physical solution, take the Dual Mode Virtual Wall Barrier. Slide the toggle switch to "Halo" mode. Place the barrier approximately 6 inches away from the couch leg; this creates a 360-degree invisible "no-go" circle that prevents the robot from ever touching the furniture.

If That Didn't Work

• Install Furniture Risers: If you actually want the area under the couch cleaned, the clearance is likely too tight (between 3.6 and 4 inches). Purchase heavy-duty rubber furniture risers to lift the couch by 1 to 2 inches. This provides the necessary overhead clearance for the robot's top sensors to avoid friction with the underside of the frame.
• Physical Blocking: If the robot is ignoring the Virtual Wall due to high ambient sunlight (which can interfere with infrared signals), place a physical object, such as a decorative plant or a heavy doorstop, in the specific "entry point" where the robot typically wedges itself.
• Check for "Saggy" Fabric: Inspect the underside of your couch for loose linens or dust covers. If the fabric is hanging low, use upholstery pins or heavy-duty staples to pull the fabric tight against the frame. This removes the "snag point" that often pulls the robot into a trapped position.
• Hard Reset the Sensors: If the robot is getting stuck in open areas where it shouldn't, the bumper sensors may be jammed. Remove the dust bin, turn the robot off and on, and firmly tap the front bumper several times to ensure the mechanical switches are clicking freely and not stuck in a "compressed" state.

Heads Up

• Avoid placing Virtual Wall Barriers in direct sunlight or near large glass windows, as the infrared beam can be "washed out," causing the robot to ignore the boundary and drive straight into the couch.
• Regularly clean the two side-brush modules; if the brushes are tangled with hair, they can catch on couch skirts more easily, pulling the robot into tight spaces.
• If you move your couch for cleaning or rearranging, you must delete and redraw your "Keep Out Zones" in the app, as the robot will continue to follow the old map coordinates.
• Ensure the Clean Base (Self-Emptying Station) is placed on a hard surface with at least 1.5 feet of clearance in front and 0.5 feet on either side to prevent the robot from getting wedged while attempting to dock.