Panasonic CS-VU18SKQ Service Manual

94
16.4.8 H25 (nanoe-G Air Purifying System Abnormal)
Malfunction Decision Conditions
 During standby of cooling operation, nanoe-G breakdown occurs and air conditioner stops operation.
Malfunction Caused
 Faulty indoor main PCB.
 Faulty indoor nanoe-G power module.
Troubleshooting
When abnormality indication starts again
● Turn off the power, and reconnect CN-CLN connector
● Turn on the power, and measure again the DC voltage
between CN-CLN channel 4 & 2
Is the voltage measured at 5Vdc?
● Defect in indoor unit nanoe-G power module
● Replace the indoor unit nanoe-G power module
● Defect in indoor unit main PCB
● Replace the indoor unit main PCB
Check the indoor unit main PCB CN-CLN terminal 4 & 2 DC
voltage:
● Turn off the power
● Disconnect the CN-CLN connector
● Turn on the power, measure the DC voltage between
CN-CLN terminal 4 & 2
Is the DC voltage measured at 5Vdc?
NO
● Defect in indoor main PCB
● Replace the indoor unit main PCB
YES
NO
YES
For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.
nanoe-G power
module
WIRE HOLDER
GENERATOR
COMPLETE
ELECTRONIC
CONTROLLER
44
11
W
GG
BL
HV(-)
W
W
W
W
HV(+)
GND

Panasonic CS-VU18SKQ Specifications

General

Brand	Panasonic
Model	CS-VU18SKQ
Category	Air Conditioner
Language	English