Troubleshooting SiBE81-909
64 Humidifying Air Purifier
7.5 Check
7.5.1 Checking the connection when the PCB is replaced.
Check1
Perform the following checking procedure when replacing the PCB.
(1) Procedure
Pressing [ON/OFF] button and [Humidify ON/OFF] button simultaneously,
turn on the power. → The buzzer sounds and all lamps light.
After checking the buzzer sound, press [ON/OFF] button once.
→ The lamps corresponding to the PCB version light.
Press [Humidify ON/OFF] button once.
Press [Fan setting] button once. → Check the sensor.
The buzzer sounds and all lamps light.
Refer to the 4 lamps below.
Normal
Error
•When the unit 1 lamp blinks:
•When the unit 2 lamp blinks:
• When the unit 1 lamp lights: The wiring of the dust correction HVU is improperly connected.
•When the air-purifying filter lamp blinks:
The dust sensor is at fault or
improperly connected.
The odor sensor is at fault.
The humidifying sensor is at fault or
improperly connected.
The room temperature thermistor is
at fault or improperly connected.
Use the 4 lamps for checking.
Reset the power supply to resume the normal mode.
(2) Procedure (Wiring check mode)
Insert the power supply plug into the outlet.
Press [OFF TIMER] button within 2 seconds.
The buzzer sounds and all lamps light.
(when connection is improper):
Normal
Error
• When the unit 2 lamp lights: The wiring of the streamer HVU is improperly connected.
• When the unit 1 and unit 2 lamps light simultaneously: The wirings of the dust correction HVU
and the streamer HVU are improperly connected.
Reset the power supply to resume the normal mode.
•When the humidifying filter lamp blinks:
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