Roborock Customer Service Center - Technical Support
2. Q: Why is the machine not designed to fully avoid impact on
furniture?
A:
To obtain the best cleaning effect, the robotic vacuum cleaner is
designed to work in extreme distances. Without impact, trash at the root
of furniture may not be effectively collected. For this reason, the machine
is designed in such a way that it can slightly impact furniture to ensure
the best cleaning effect. However, please be assured that, as the robotic
vacuum cleaner is provided with an infrared deceleration sensor, most of
furniture can be properly identified and the machine will decelerate when
impacting on them; thus, furniture or the machine itself will not be
bruised.
3. Q: Why does the speed of the side brush change frequently?
A:
The side brush, when working along a wall or around an obstacle, will
run in full speed of 330RPM to ensure that trash in a corner and at the
root of furniture is completely collected. Nevertheless, when running in
other conditions, it will switch to low speed of 130RPM in an open field
to prevent trash flying about. Dynamic speed regulation of the side brush
will ensure the best cleaning effect.
4. Q: Why is the brush and fan not turned off to recharge the machine?
A:
Firstly, to prevent deformation or damage to the side brush due to
scratch when the machine goes for recharging; secondly, to prevent trash
leakage due to shaking when the machine goes for recharging.
5. Q: Why does the side brush and main brush of the machine reverse?
A:
When any twined foreign matter (such as USB cable) is detected, the
main brush and side brush of the machine will try to reverse to unwind it.
In some cases, the side brush, even not being twined, may also reverse
transiently when it hits on some specific obstacles. This is normal.
6. Q: Why does the machine recharge after working twice in my house?
A:
If a complete cleaning operation takes less than 10 minutes, the
machine will work one more time before automatically going recharge or
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