Question about iRobot Roomba 440 Cordless Robot Vacuum

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Only backs up

When activated, roomba only backs up or turns a small arc of a circle, then backups up again. Bumper and cliff sensors are clear of debris.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: roomba just runs in small

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.

Posted on Oct 21, 2008

  • 61 Answers

SOURCE: roomba red 4100 cleans in small circle stops

When the status light comes on, the Roomba is going to sing "uh-oh," and then beep a number of times. Count the beeps. They're a code that tells you what's wrong with the Roomba. You can check iRobot's website for a chart of beep codes. Search "What is Roomba saying to me?" on the troubleshooting page.

Posted on May 15, 2009

  • 58 Answers

SOURCE: My Roomba 560 just spins in circles and then stops and beeps 9

Perhaps its a wheel drop sensor instead of a cliff sensor. Clean the caster, caster axle, caster motion sensor, remove and vacuum or blow the dirt from the left and right wheel assemblies.

Posted on Dec 13, 2009

pappapumpdaf
  • 635 Answers

SOURCE: my roomba won't go forward it just spins in a

You will need to take the top off to clear those wheels.
This happens a lot when cleaning new carpet. The fuzz jams the wheel switch, and dosey do you go.

Posted on Mar 11, 2010

  • 66 Answers

SOURCE: Roomba 560 beeps 9 times; we've cleaned the

Yes, this is known issue and if your bumper moves freely, you might be facing a sensor fault caused by poor quality of components.
Here is a guide to fix it
http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm
Have fun
Avi

Posted on Mar 18, 2010

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2 Answers

I starts and tehn stops and beeps three times. I can start it aain and it will run but then it does the same thing'


Hi,

TYhe iRobot Roomba has different model designations. Here is a webpage with a list of what the beeps mean in the 400 series. I am thinking that is what you have. 3 beeps means the dirt cup is dirty, filters are dirty, or debris in collecting and it needs to be cleaned.

Here is the webpage: http://uksupport.irobot.com/app/answers/detail/a_id/1047/kw/iRobot%20Roomba%20Discovery%20SE%20Bagless%20Robotic%204200%20series%20Vacuum%20beeps%203%20times/related/1

Hope this helps. If it does, I would appreciate a vote. Thanks,

Handie Andie

Apr 01, 2011 | iRobot Roomba Discovery SE Bagless Robotic...

2 Answers

Bumper switches on continues


Hi. An IR LED is damaged. You can replace the sensor or purchase a complete cliff sensor bumper.

May 15, 2010 | Roomba Robotic Floor Bagless Vacuum

3 Answers

It starts and for a few seconds and then stops The battery is fine


Is the charging ase turned on and is the dust container emptied? Any obstructions?

Apr 11, 2010 | Roomba Robotic Floor Bagless Vacuum

3 Answers

Roomba keeps saying "Clean Brushes"!!


Have you made sure the brushes aren't clogged with thread and hair, and that the brush bearings are still good?

1) remove the brush guard.
2) remove the brushes
3) remove any hair or debris using the cleaning tool

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4) replace the Roombas brush bearings

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5) replace brushed and brush guards

If this doesn't work then, try the following:
  1. Power off the Roomba.
  2. Remove the dirt bin.
  3. Place the robot upside down on a flat, padded surface.
  4. Check for any dust or dirt obstructing the Cliff Sensors (with Roomba upside down, the sensors are located in the four rectangular areas just inside the edge of the front bumper).
  5. Next, press the front bumper in to make sure it springs back.
  6. Make sure both yellow brush caps are installed correctly
  7. Make sure the main brush and the flapper brush each have a yellow bearing installed correctly.
bce99c3.jpg

Mar 26, 2010 | Roomba Robotic Floor Bagless Vacuum

1 Answer

Roomba red #4100 needs repair does the circle


sounds like you have two different issues here. (Possibly one common)
Clean out the cliff sensors. Under the bumper. blow it out clean. This might stop the reverse circling. The battery is either bad, or the charging circuit is bad. if battery is know good then the problem is the main board needs to be replaced. a bad battery will kill a main boards charging circuit by over working it with shorted batteries

Mar 20, 2010 | iRobot Roomba Red 4100 Bagless Robotic...

3 Answers

560 backs out of charging base then only turns in right circles


Yes, this is known issue and if your bumper moves freely, you might be facing a sensor fault caused by poor quality of components.
Here is a guide to fix it
http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm
Have fun
Avi

Dec 05, 2009 | iRobot Roomba 560 Robotic Vacuum

2 Answers

My Roomba 560 has started to run in small steps as if it constantly meets an obstacle and turns around in a very small circle. It advances slightly, backs slightly and turns and then does this again and...


It probably does think its met an obstacle. It could be the bump sensor switch remains pressed, one of the 4 cliff sensors on the front is dirty, or one of the 3 wheel drop sensors (left right and caster) is alarmed. Clean the sensors and your problem may resolve.

Oct 04, 2009 | iRobot Roomba 560 Robotic Vacuum

2 Answers

Roomba circles


Yes, this is known issue and if your bumper moves freely, you might be facing a sensor fault caused by poor quality of components.
Here is a guide to fix it
http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm
Have fun
Avi

Sep 12, 2009 | iRobot Roomba 560 Robotic Vacuum

3 Answers

I bought Roomba 560 robot vacuum cleaner about 3 weeks ago and it has been cleaned without problem all kind of positions of floors (also carpets) Last friday I anyway mountained nearby of outcoming door...


Roomba won't clean black carpet because it interprets it as a cliff. The sensors under the bumper tell the Roomba that it's about to fall down the stairs and it backs away. Unfortunately, because they're a safety feature, they can't be shut off.

Aug 18, 2009 | iRobot Roomba 560 Robotic Vacuum

5 Answers

Roomba Discovery


I had the same back-up, turn, move forward a couple inches, backup-up, etc. problem. Try cleaning/cutting the hair, etc. out from around the brushes, as well as around the ends of the brushes. Also, try a Q-tip to clean out the four pair of sensors (on my Roomba there are four pairs of little lenses under the bottom of the bumper) that (apparently) can cause the Roomba to think it is going over a cliff so it backs up. I didn't have a can of compressed air, so I turned it over on the grass and went after it with a leaf blower..up close. Lots of dust came out and it has worked fine since.

Sep 17, 2007 | Roomba Robotic Floor Bagless Vacuum

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