None
Power source system error
(Power source to indoor control PCB)
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is
AC220/240V
detected between 1 and
2 on the terminal block
of indoor
unit?
NO
NO
Are fuses OK?
YES
YES
YES
NO
Is the
check of resistance
between - of CNW0
(FDU
: T1-T2)
OK?
Note(1) FDT, FDUM : F1, F2, FDU : F3
FDTC, FDF : F200, F201
FDEN : Fuse between wires.
NO
Is the
checked result
of resistance of fan
motor, etc
OK?
NO
NO
(2)
(1)
Note (2) for GND
Is DC5V
detected between -
of CNW1?
NO
Is
AC380/415V
for 3-phase unit
detected between 1, 2 and 3
on the teminal block
of outdoor unit?
YES
YES
YES
YES
Is JX1 open?
Defective outdoor control
PCB (Noise lter)
Misconnection or breakage
of connecting wires
Defective indoor power
PCB
➞
Replace.
Replace fan motor, etc.
Replace fuse.
Defective indoor power
PCB
➞
Replace.
Open JX1.
Defective indoor control
PCB
➞
Replace.
2. Error detection method
3.
Condition of Error displayed
4. Presumable cause
• Misconnection or breakage of
connecting wires
• Blown fuse
• Faulty transformer
• Faulty indoor control or
power PCB
• Broken harness
• Faulty outdoor control PCB
(Noise filter)
Note:
Error code
Remote control:
LED Green Red
Indoor
Stays OFF Stays OFF
Outdoor
Stays OFF
2-time flash
Content
-
69
-
'14 • PAC-SM-215
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