Question about iRobot Roomba 4210 Bagless Robotic Vacuum

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Roomba going backwards

Ours goes backwards ONLY now... was stopping and starting then dying... now it only goes backwards and rides up onto the furniture and stops.
Did the fix mean sending it back and getting a new one?

Posted by fr8sfun on

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Anonymous

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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.

Posted on Sep 14, 2008

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Big Green


We found that ours had a simpler problem. Upon opening the motor compartment, we saw that the pump had "nudged" up from it's mounting slots. It is held down by a clip on each end and one had pushed up, allowing the pump to ride up and thereby disconnecting the short hose which kept the "suction train" intact. Once we re-seated the pump correctly and pushed the clip back down, the hose reached nicely and our suction was re-established.
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