19
: Lit
: Off
Indication
Error code
F5
F1
Error item
Gas sensor disconnection/detection error
Insufficient blower fan rotation speed
Cause and remedy
Use an odor component such as hair tonic near the gas sensor and check if the sensor
detects it normally
. (As the gas sensor requires a warm-up operation, have power
running through the air purifier for at least 5 minutes
beforehand.)
Check that the connectors P20 and P200 are inserted properly
.
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
Gas sensor circuit board
Blower motor
Condition
—
—
Connector
P20, P200
—
T
erminal to check
—
—
Normal value
—
—
Indication
Error code
A8
Error item
EEPROM error
Cause and remedy
EEPROM failure
Part name
Power supply control circuit board
Condition
—
Connector
—
T
erminal to check
—
Normal value
—