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38
ENGLISH
Symptom Cause Solution
The overall air quality
indicator light stays
red for a long period.
The color should change
if the air purier is moved
to a cleaner area. If it
doesn’t, clean the sensor
or unplug the product
briey.
•
If the odor level is beyond the
capacity of the air purier, the
display may not change.
•
Clean the sensor area.
•
Remove the power plug from
the outlet and reconnect it one
minute later.
A spray product such as
cooking oil, perfume, or
deodorizer was used near
the air purier.
•
Do not spray substances near
the air purier.
The buttons on the
control panel do not
work.
The Lock icon
is
showing on the status
display panel.
•
Press and hold the Sleep
Timer button for 3 sec. or
longer to disable the Lock
function.
The ne dust density
does not change.
The sensor may be dirty.
•
Clean the PM 1.0 (super ultra-
ne dust) sensor.
The air purier is installed
in an enclosed space.
•
If there is little air circulation or
incoming air in the space, the
air quality may stay the same.
The ne dust density
remains high.
The product may be
installed near a constant
ow of outside air.
•
In an environment where
outside air is supplied
continuously, the density may
remain high.
The color of the
overall air quality
indicator does not
match the dust
density level.
The odor level may be
higher than the dust
density level.
•
The overall air quality level
is determined by the higher
of the PM density and odor
levels.
•
Even if the PM density is low,
if the odor level is high, the
overall air quality indicator will
reect the odor level.
The overall air quality
level is different than
the EPA overall air
quality level.
The EPA method of
measuring overall air
quality may be different.
•
The EPA measurement is
an average value over time.
The air purier measures air
quality in real time. So the
results may be different.
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