Use and Care Manual

Error Code 04: Ground Detection Sensors

Error Code 04 means Bob’s ground detection sensors are blocked or dirty. Bob’s four,

oval-shaped edge sensors are located on his bottom, near his bumper.

What to do:

Wipe the sensors using a clean, dry cloth or dust them using compressed air. If

Bob displays this Error Code while working on dark-colored carpet or

patterned flooring, you may need to blindfold him. See page 69 for instructions.

Error Code 05: Wall Sensors

Error Code 05 means Bob’s wall sensors are blocked or dirty.

What to do:

Do a visual check on the transparent stripe on Bob’s bumper. If it is too dirty

for you to see what is behind it, wipe it with a clean, damp cloth. To ensure

nothing is jammed under the bumper, gently tap it and use compressed air to

clear it of debris. If the issue persists, try running a checkup test on Bob.