Tech Bulletin - iRobot Roomba Customer Support Booklet

Roomba Customer Support Booklet
Tech Support Bulletin 4.0
Released 11-11-2002
THE PROBLEM
We have received a small number of reports of issues with the Brush Coupler in Roomba.
The Brush Coupler is a plastic part into which the two main brushes attach themselves to
Roomba.
Consumers who use Roomba in homes with a lot of pet hair have stated that the Brush
Coupler fails when too much hair has built up at the end of the brushes. The build up of
hair causes one of the metallic bushings to pop out of the Brush Coupler. Once a bushing
pops out of the Brush Coupler, the two main brushes are no longer securely attached to
Roomba and there's a notable decrease in cleaning performance.
The Brush Coupler has two metallic bushings.
This issue has been tracked down and an improved Brush Coupler will be put into
production in January to eliminate the possibility of this failure mode.
DIAGNOSIS
Roomba operates erratically, spinning in place.
Roomba starts up normally, however, the two main brushes turn on and off
irregularly.
A metallic bushing is found in Roomba's particle bin.
Roomba sounds like it is laboring or working harder than normal.
Confirmation may be obtained by asking the customer to remove the two main brushes
from Roomba and inspecting the Brush Coupler to insure that both metallic bushings are
still in place.
THE SOLUTION
A three-pack of replacement Brush Couplers can be obtained free of charge by calling
Roomba Customer Support 1-877-855-8593, Monday- Friday, 9-7 Eastern. All units
manufactured after 1/1/03 will have a die cast Brush Coupler, which solves the problem.
DATE CODE AFFECTED
All up to 011003
SEVERITY
All units have the same Brush Coupler and are susceptible to this problem. Only Roomba
users who have both exceptional amounts of long hair on their floors and fail to properly
clean the brushes periodically will see this problem.
Can't find the answer to your support question? Call Roomba Customer Support at 1-877-855-8593 or email us at
roomba-support@irobot.com
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