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Goes in circles

Goes in circle Discovery 4210

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Goes circles 4210

I had this problem with mine, it was just going in a circle, some people suggested to clean the bump sensor with air, it may work for you, but it didn't for me, I found out that the problem was a servo motor at one of the wheels, bought a refurbished set of wheels, took the Roomba apart and replaced the part, working like a champ.

Nov 25, 2013 | Roomba Pro Elite Bagless Robotic Vacuum

1 Answer


Hello, this is Ava with Think Crucial.

You may find the User's Manual for your Roomba model by clicking the link below.

You can purchase a wide variety of high quality Roomba replacement parts for your Roomba vacuum direct from Think Crucial with free shipping and an exclusive 10% coupon for readers, use code: FIXYA10

I hope this was helpful.

Ava B.
Think Crucial Customer Care

Sep 10, 2012 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer

Moves in circles and backwards, though will not move forward

Sounds like your bumper switch is stuck. try pulling on the bumper to free it, then clear any obstructions you find.

Mar 07, 2010 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer

Turns in circles, acts like it hits a virtual wall then stops

Reboot is probably not your solution. Your Roomba will react to invisible signals or 'interference' from other electrical appliances as well as the invisible wall boxes. You can clearly see how this happens when a Roomba gets near your computer or other device that is on. Also, the Roomba will go in circles when the dirt chamber is full or it thinks it's full. Try a thorough clean of all major parts including the brushes. Sometimes this activity will occur when the brushes get snarled on thread or carpet fibers.

Oct 09, 2009 | iRobot Roomba 4210 Bagless Robotic Vacuum

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My roomba discovery will not operate on the clean or max buttons, will do the spot clean and goes forward then circles. Turns itself off and plays a little da do da do do do do. I have emptied tray,...

If your Roomba goes "uh-oh", beep-beep-beep, that's a 3-beep error code, indicating that your vacuum motor is stalled. Remove the grill from the outside (back) of the dustbin and make sure that the impeller (looks like a fan) turns easily and is not clogged with dirt. Then try to run the robot with the bin ON but the grill OFF. You should be able to tell whether the vacuum impeller is spinning. If not, you'll need a new bin. You can confirm wth customer support by calling 1-877-855-8593.

Jul 16, 2009 | iRobot Roomba Discovery SE Bagless Robotic...

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Roomba Discovery 4210 was "played with" by 3 year old

go to and send it to them to get it ran through a battery of tests.

Apr 10, 2009 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer


Do you have it set on "spot"? This causes Roomba to start out in circles, expanding and expanding until a certain time and then returns by going in circles, making smaller circles, until it gets to its starting point.

Oct 21, 2008 | Roomba Robotic Floor Bagless Vacuum

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Roomba just runs in small circles

i just recently had someone bring in a roomba discovery and all it would do is stay in a tight 4 tile area and go in circles. battery was fully charged and all bumpers were clear.

i took a can of air blast for cleaning computers and blasted the area on the bottom underneath the sensor and watched as several dust bunnies came flying out.gave it a few more blasts for good measure and put it back on the floor and hit power then clean buttons.

thing went in same tight circle for 2 passes then the circle got bigger for 2 more passes , blue light indicator came on and it made a straight line dash across to closed door and started following the edge and criss-crossing the room.

called the owner back in to test and it repeated the same moves when she started it and all appeared to be working normal again.

Aug 13, 2008 | iRobot Vacuums

1 Answer

My roomba runs in circles

Try using a leaf blower, up close and all around. I was having problems with (I assume) the sensors under the bumper and (maybe) the wheel sensors, but after blowing it out with a leaf blower it works fine.

Apr 01, 2008 | iRobot Roomba 4210 Bagless Robotic Vacuum

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IRobot Roomba Discovery not moving across room.

I had the same kind of problem with my model 400 today...after starting it and having it go in a circle for 30 seconds or so it would finally run into something and then back up a few inches, turn, then go forward a few inches, then back up a few inches, turn, then go forward a few inches, etc., etc.. I tried cleaning off the four pairs of sensors under the bumper and blowing out various things underneath (by mouth since I didn't have any canned compressed air). It didn't really help. It then occurred to me that I had a leaf blower! I put the Roomba upside down on the grass, put the leaf blower on high, and blew at it from all directions and up close. More dust came out than I thought would. It has been running normally now for the last 45 minutes.

Sep 26, 2007 | iRobot Roomba 4210 Bagless Robotic Vacuum

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