Specifications

SiBE81-909 Troubleshooting
Humidifying Air Purifier 59
7.4.3 The odor / dust sensor lamp keeps lighting red.
1
Models Covered
5
Troubleshooting
MCK75JVM-K
Diagnosis Remedy
This is not a failure.
The odor sensor
detects moisture in
the air.
•
Install the unit in
other place.
•
Reset the power
supply.
Replace the dis-
play PCB.
Go to on
P. 6 4 .
This is not a failure.
•
When the room is
too large or open,
the sensor is
always activated
due to insufficient
capacity.
This is not a failure.
Connect the con-
nector.
[S1, CN2]
Replace the har-
ness.
Replace the dust
sensor the opera-
tion PCB.
Go to on
P. 6 4 .
2
Method of Mal-
function Detection
3
Malfunction Deci-
sion conditions
4
Supposed Causes
•
Wrong diagnosis
(Red lighting of the odor/dust sen-
sor during detecting dust or mois-
ture in the air was decided as
failure.)
•
The sensor is defective.
(The display PCB is defective.)
•
The dust sensor is defective.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the humidity 80%
or lower?
Check humidity of the
installation environment.
No
Does the lamp keep
lighting red?
Ye s
Install the unit in
another room or corridor.
Clean the air inlet port and the
peripheral area of the dust sensor.
Install the unit in another place.
Is the dust sensor
lamp changed?
Ye s
Is the connector
of the dust sensor
connected?
No
No
Ye s
Is the harness broken?
Ye s
No
Ye s
No
<When the dust sensor is lighting red:>
<When the odor sensor is lighting red:>
Check1
Check1