27
Output Gears
Brush Motor, Gearbox, Shaft
QC
o Ensure BiT passes with returned or replaced
brushes
o Verify the string is attached to the chassis
Failed BiT 12 – Debris Sensor
Roomba Symptom: Roomba’s blue light never
comes on in a dirty environment.
BiT REPAIR STEPS
Æ Verify the debris sensor is not covered in dirt.
Æ If it test still fails replace main brush assembly.
REPLACEMENT
PART
Main Brush Assembly