iRobot Roomba Discovery, Service Manual, Page: 20 / 87

20
Failed BiT 4 – Wheel Drop
Roomba Symptom: Roomba has triangular wiggle
behavior at startup or stops with “uh-oh and 6 or 9
beeps”.
BiT REP
A
IR
STEPS
Æ Inspect the failed wheel switch and toggle it. If the
switch arm is worn or broken, then replace the switch.
Æ Clean the switch with a drop of alcohol and dry
switch with compressed air.
Æ If switch is loose from its mounting support,
reattach it with hot glue.
Fixed Front Caster Module
REPL
ACE
M
ENT P
A
RT
Speaker/Wheel Drop Switch