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Models FDC100,125,140VN
●
Outdoor unit check points
Check items with the *mark when the power is ON.
*
Power supply check:
Measure the power supply L1,N
(It is normal if it is AC220-240V)
2
TB
TB8
L1i
Red
L1
F 250V 30A
Ni
White
F
N
250V 8A
Red
1
PWB3
White
NOISE FILTER
2
CN1
3
TB7
2
CNW2
Must be conductive.
When fuse is blown,
replace it or check wiring.
RAM
CNE
CNH
63H
Noise filter check:
There should be continuity.
There should be no shorts between phases.
L1o
～
＋
TB1
52X1
DM
TB2
No
～
－
CT1
LPT
CNW
CNIP
CNIP
CNTH
CNPS
PWB1
CONTROL PWB
F1 (250V, 2A)
F2 (250V, 4A)
LED2
LED1
(Red)
(Green)
CNR
CNS
CNEEV1
CH1
20S
SM1
LED2(Red) check:
1~5 time flash ( Refer to page 329・330 )
Capacitor check:
DC Reactor continuity Check:
Check for anomaly in appearance
Max 25mΩ
such as damage, swelling, etc.
L1
L1
L2
＋
P
C1
TB10
A/F MODULE
TB21
N2
－
CNACT1
CNA2
CNI1
CNI3
18V
15V
CNA1
CNFAN1
FMO1
CNEEV2
When the outdoor
unit fan motor is
abnormal.
SM2
(Refer to page 399・444)
Check the power transistor
module if there is short, open, or
breakdown on the elements
PWB2
INVERTER PWB
TB5
TB7
Red
DIP-IPM
TB8
White
LED1
TB6
(Yellow)
TB9
Blue
CNI2
CNI4
CNE
RAM
LED1 (Yellow) Check :
1 ~ 6 times flash
( Refer to page 329・330 )
U
V
CM
W
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