– 213 –
No
Yes
[L31]
No
No
Yes
Yes
[P01]
* For the models equipped with AC fan motor only
Yes
Yes
No
No
[L30]
esuaCedo
c
k
cehC
Check code name
esuaCedo
c
k
ceh
C Check code name
e
suaCedoc kce
h
C Check code name
Abnormal input from the outside
Interlock in indoor unit from
outside
Other IPDU errors
Is outside device
connected to connector
CN80?
Does outside device
correctly operate?
Is there any trouble
of outdoor unit power
supply?
Is there no
connection error or
disconnection of CN076
connector?
Is not there lock of fan
motor?
Check indoor P.C. board.
Failure
Replace
Check outside device.
Failure
Replace
Check power voltage and
line.
Check auxiliaty noise, etc.
Correct cabling circuit for
the connector connection.
Replace fan motor.
Check indoor P.C. board.
Failure
Replace
Check outdoor I/F P.C.
board.
Check cause of abnormal
input.
1. Outdoor unit power error
2. Outdoor I/F P.C. board error
Indoor fan motor error
1. Wiring error
2. Check fan motor.
[L29]
Yes
No
Yes
Yes
No
No
Yes
No
Yes
No
Sub-code
01
02
03
04
05
06
07
08
09
12
A3-IPDU
3
0A
0B
0C
0D
0E
0F
12
A3-IPDU
O
O
O
O
O
O
O
O
3
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
esuaCedoc kcehC Check code name
Is jumper
setup of outdoor I/F
P.C. board correct?
(Check jumpers 8, 9,
10, 11 and 12)
Is
communication
connector between IPDU
and I/F P.C. board
connected?
Is there
no disconnection of
communication line between
IPDU and I/F P.C.
board?*
Is there
voltage fluctuation
between 4 and 5 pins of
CN600 on I/F P.C. board?
(Measurement by tester:
DC0 to 5V,
5 pin GND)
Is there
voltage fluctuation
between 3 and 5 pins of
CN600 on I/F P.C. board?
(Measurement by tester:
DC0 to 5V,
5 pin GND)
Correct connection of connector.
Correct connection of connector.
Replace communication line.
I/F P.C. board error
I/F P.C. board error
Replace the troubled
IPDU P.C. board.
IPDU quantity error
1. Incorrect model setup in service for I/F P.C. board
2. Communication error between A3-IPDU, fan IPDU
and I/F
3. A3-IPDU, fan IPDU, I/F P.C. board error
Fan
IPDU
Fan
IPDU
O: IPDU error part
In the case that All IPDUs (A3- IPDUs and fan IPDUs) do not
return response.
* Two A3-IPDUs (NO. 1 and 2) exist in 8, 10 or 12 HP models.
In 14 or 16 HP models, three A3-IPDUs (No. 1, 2, 3) exist.
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