Failed Bit 4 - Wall Sensor - iRobot Roomba Scheduler Service Manual

o If replacing switch, verify the wires are well
routed and will not be pinched during reassembly.
o Ensure BiT passes.
Failed BiT 4 – Wall Sensor
Roomba Symptom: Roomba does not run parallel to
the walls on its right side.
Clean the wall sensor with compressed air
Perform a wall follow test (see Figure 2 in
Appendix H)
Attach an *approved* outer bumper and retest to
rule out pcb failures.
o Ensure BiT and MT passes.
Wheel Drop Switch
Outer Bumper Assembly
Outer Bumper Assembly
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