Check - Daikin MCK75JVM-K Service Manual

Troubleshooting
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.
Normal
The buzzer sounds and all lamps light.
Refer to the 4 lamps below.
Error
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.
Normal The buzzer sounds and all lamps light.
(when connection is improper):
Error
• When the unit 1 lamp lights: The wiring of the dust correction HVU is improperly connected.
• 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.
64
•When the unit 1 lamp blinks:
The dust sensor is at fault or
improperly connected.
•When the unit 2 lamp blinks:
The odor sensor is at fault.
•When the humidifying filter lamp blinks:
The humidifying sensor is at fault or
improperly connected.
•When the air-purifying filter lamp blinks:
The room temperature thermistor is
at fault or improperly connected.
SiBE81-909
Humidifying Air Purifier