Question about Vacuums
Hi my hoover robot just keeps spinning in circles how do I stoo this
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Posted on Jan 02, 2017
SOURCE: i robot discovery
I have takin several Roombas apart with this problem. Basically the sensors on the bumber are blocked so the roomba thinks it is hitting something. I believe this is a design problem because it is so common. If you could see how the bumbers work, there is an infrared sending unit and an infrared receiving unit (they look like little LED's. when the bumper is pressed, a plastic piece moves between the two infrared led's blocking the transmission. This signals roomba to stop and backup. What happens over time is the sending led thing gets dislodged and moves slightly. The receiving led can't sense the signal so it thinks the bumper is depressed.
Hard to explain, but I have fixed the problem by shimming the led back in place and worst case, I drilled the hole in the plastic piece a little larger. Solved the problem and I have recaimed several roombas that were considered scrap. Irobot should fess up to this known problem and issue a fix for everyone of the defective units.
Posted on Mar 06, 2009
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