AE-X15PU
3 – 17
Problem
symptom
Outdoor
unit
indication
(LED1)
Indoor unit
Malfunction
No.*
Content of diagnosis
Check point
Action
→
Lamp
Main Sub
Main
Sub
Indoor and
outdoor
units do not
operate.
Normal
blinking or
OFF
O O O O O Timer (Orange)
19
0
Indoor unit
fan
Indoor unit fan error 1) Check the indoor fan
motor for proper rotat-
ing operation.
(Check fan lock.)
2) Check the lead wire of
the indoor fan motor for
open-circuit.
3) Check connector ofthe
indoor unit fanmotor for
secureinstallation.
4) 1) 2) 3): Normal
1) Replace the indoor
fan motor.
2) Replace the indoor
fan motor.
3) Correct the installa-
tion of the indoor
fan motor connec-
tor.
4) Replace the indoo-
runit control PCB.
O
O O Operation (Green)
Plasmacluster (Blue)
Indoor and
outdoor
units do not
operate.
Normal
blinking or
OFF
O O O O O Timer (Orange)
20
0
Indoor unit
control PCB
EEPROM data error (EEPROM read data error) Replace the indoor unit
control PWB.
O
O
Operation (Green)
Plasmacluster (Blue)
Indoor and
outdoor
units oper-
ate.
Normal
blinking
or OFF
Timer (Orange)
room tem-
perature
thermistor
Indoor unit room
temperature
thermistor
(1)Check connector of
thermistor for
secure installation.
(1)Replace the ther-
mistor.
Operation (Green)
Plasmacluster(Blue)
Operation (Green)
Plasmacluster(Blue)
Operation (Green)
Plasmacluster(Blue)
(2)Check the tempera-
ture properties of
the thermistor.
(2)Replace the ther-
mistor.
Timer (Orange)
pipe tem-
perature
thermistor
Indoor unit pipe
temperature
thermistor
(1)Check connector of
thermistor for
secure installation.
(1)Replace the ther-
mistor.
(2)Check the tempera-
ture properties of
the thermistor.
(2)Replace the ther-
mistor.
Timer (Orange)
valve tem-
perature
thermistor
Indoor unit valve
temperature
thermistor
(1)Check connector of
thermistor for
secure installation.
(1)Replace the ther-
mistor.
(2)Check the tempera-
ture properties of
the thermistor.
(2)Replace the ther-
mistor.
26
1
Indoor unit
2
Indoor unit
3
Indoor unit
*Remark
The malfunction No. is calculated using the following way.
Example)
Indoor unit lamp
→
Lamp
Calculation
Main
Sub
16 8
4
2
1
Timer (orange)
O O O O O
Operation (Green)
O
O
4+1=5
5
Plasmacluster (blue)
O
2
2
