2 replies
Jun '15

jim-106

Excellent troubleshooting hints. Well documented, and very easy to follow. I now own 7 roomba’s 500 series in various states of repair. I seem to have more than my share of cliff, IR, or bumper sensor issues. Is there a chance someone could do a section on cliff sensors for the 500 series someday soon. They have the strangest mounting point, I have no clue how to even take them apart, much less replace the defective parts.

Thanks!!!

Keep up the good work.

Apr '16

chrisdecker

Hi Julie, Thanks for your excellent instructions and photos. I just finished changing the cliff sensors on my Discovery 4210 because of a broken bumper sensor arm. Your instructions and photos made it fairly easy and my roomba is running perfectly again.
Thanks,

Chris