Daikin MCK75JVM-K Service Manual page 64

SiBE81-909
7.4.7 The power supply PCB or the operation PCB is at fault.
Caution
1
Models Covered
MCK75JVM-K
2
Method of Mal-
function Detection
Abnormality of the zero cross from
the power supply is detected.
3
Malfunction Deci-
sion conditions
When the zero cross cannot contin-
uously be detected for about 10 sec-
onds
4
Supposed Causes
•
The connector is improperly con-
nected.
•
The power supply PCB is defec-
tive.
•
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
The 3 OFF timer lamps
simultaneously blink.
Check the connector
for connection (S108).
Is the connector
Yes
properly connected?
No
Correct the connection.
Yes
Do the lamps above
blink again?
No
OK
Troubleshooting
Remedy
Replace the power
supply PCB.
Check1
Go to on
P. 64.
Replace the opera-
tion PCB.
Check1
Go to on
P. 64.
63