21
Indication
Error code
F6
F5
Error item
Dust sensor disconnection
Odor sensor disconnection/detection error
Cause and remedy
Rub tissue paper near the dust sensor cover for approx. 20 seconds (the number of dust
pieces is counted every 10 seconds). Check if the sensor detects dust normally
.
Check that the connector on the dust sensor side and the relay connector are inserted properly
.
Check that the connector P105 is inserted properly
.
Use an odor component such as hair tonic near the odor sensor and check if the sensor
detects it normally
. (As the odor sensor requires a warm-up operation, run the air
purifier for at
least 5 minutes beforehand.)
Check that the connectors P103 and P104 are inserted properly
.
Part name
Dust sensor
Odor sensor circuit board
Condition
—
—
Connector
P105, relay connector
P103, P104
T
erminal to check
—
—
Normal value
—
—
Indication
Error code
F1
F3
Error item
Insufficient blower fan
A (upper side) rotation speed
Insufficient blower fan B (lower side) rotation speed
Cause and remedy
Cause:
1
Insufficient torque on the blower fan
motor
2
Reduc
ed airflow
path pressure du
e to missing or malfunctioning filter
or
improper assembly
Remedy:
1
Check the airflow path.
2
Repla
ce the blower motor
.
CAUTION:
There is no need to replace the circuit board as it is operating normally
.
Cause:
1
Insufficient torque on the blower fan
motor
2
Reduc
ed airflow
path pressure du
e to missing or malfunctioning filter
or
improper assembly
Remedy:
1
Check the airflow path.
2
Repla
ce the blower motor
.
CAUTION:
There is no need to replace the circuit board as it is operating normally
.
Part name
Blower motor
Blower motor
Condition
—
—
Connector
—
—
T
erminal to check
—
—
Normal value
—
—
