Daikin MCK75JVM-K Service Manual page 62

SiBE81-909
7.4.5 The odor / dust / humidity sensor lamp does not light.
Caution
1
Models Covered
MCK75JVM-K
2
Method of Mal-
function Detection
3
Malfunction Deci-
sion conditions
4
Supposed Causes
•
The flat cable is improperly con-
nected.
•
The display PCB is defective.
•
The operation PCB is defective.
Humidifying Air Purifier
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
5
Troubleshooting
Diagnosis
If the brightness
Yes
adjustment button is
pressed, is the lamp
turned on?
No
Is the flat cable
linking the display
No
PCB and the
operation PCB
connected?
Yes
Troubleshooting
Remedy
This is not a failure.
Connect the flat
cable.
[S129, S400]
Replace the dis-
play PCB or the
operation PCB.
Go to Check1 on
P. 64.
61