iRobot Roomba Discovery - Failed BiT 2 or 3 - Outer & Inner Cliff Sensors

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Failed BiT 2 or 3 – Outer & Inner Cliff Sensors
Roomba Symptom: Roomba does not see cliffs or
o Does not run, says “ehh”
o Backs up in circular arcs
o Stops with “uh-oh and 5 beeps”
BiT REPAIR STEPS
Æ Clean the sensors with compressed air.
Æ Is the side brush blocking the outer sensor? Rotate
the side brush arms away from the cliff sensor
opening.
Æ Remove the outer bumper and inspect the cliff
sensor wiring.
REPLACEMENT
PART
Inner Bumper Module
QC
o When attaching the inner and outer bumper verify
that the wires are well routed and not being
pinched.
o Verify that the bumper can be compressed and
released freely on both sides
o Ensure BiT passes.