12LRN
3 – 20
Indoor unit
operates.
Outdoor unit
does not
operate.
Lighting
or OFF
Timer (Orange)
18
0
Wiring
between
units
Serial short-cir-
cuit
(1) Check the wiring
between units.
(1) Correct the wiring.
Operation (Red)
Plasmacluster
(Blue)
Indoor and
outdoor units
do not oper-
ate.
Lighting
or OFF
Timer (Orange)
1
Serial erroneous
wiring
(1) Check the wiring
between units.
(1) Correct the wiring.
Operation (Red)
Plasmacluster
(Blue)
Indoor and
outdoor units
do not oper-
ate.
Normal
blinking
or OFF
Timer (Orange)
19
0
Indoor unit
fan
Indoor unit fan
error
(1) Check the indoor fan
motor for proper
rotating operation.
(Check fan lock.)
(1) Replace the indoor
fan motor.
Operation (Red)
Plasmacluster
(Blue)
(2) Check the lead wire
of the indoor fan
motor for open-cir-
cuit.
(2) Replace the indoor
fan motor.
(3) Check connector of
the indoor unit fan
motor for secure
installation.
(3) Correct the instal-
lation of the indoor
fan motor connec-
tor.
(4) (1) (2) (3):Normal
(4) Replace the indoor
unit control PCB.
Indoor and
outdoor units
do not oper-
ate.
Normal
blinking
or OFF
Timer (Orange)
20
0
Indoor unit
control PCB
EEPROM data
error
(1) (EEPROM read data
error)
(1) Replace the indoor
unit control PCB.
Operation (Red)
Plasmacluster
(Blue)
Problem
symptom
Outdoor
unit indi-
cation
(LED1)
Indoor unit
Malfunc-
tion No.
Content of diagnosis
Check point
Action
Lamp
Main Sub
Main
Sub
Содержание 09LR-N
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