ERROR CONTENTS
(indoor unit)
CAUTION
Supply power to the crankcase heater for at least
12 hours before the start of operation in winter.
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button
simultaneously for 2 seconds or more to start the test run.
Test run display
(3) Press the start/stop button to stop the test run.
[SELF-DIAGNOSIS]
When the error indication "E:EE" is displayed, follow the follow-
ing items to perform the self-diagnosis. "E:EE" indicates an error
has occurred.
REMOTE CONTROLLER DISPLAY
(1) Stop the air conditioner operation.
(2) Press the set temperature buttons simultaneously for 5
seconds or more to start the self-diagnosis.
Refer to the following tables for the description of each error
code.
SU
MO
TU
WE
TH FR
SA
Unit number (usually 0)
Error code
(3) Press the set temperature buttons simultaneously for 5
seconds or more to stop the self-diagnosis.
Error code Error contents
Room temperature sensor open
Room temperature sensor short-circuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor
short-circuited
Outdoor heat exchanger temperature sensor
Power source connection error
Float switch operated
Outdoor temperature sensor
Discharge pipe temperature sensor
Outdoor high pressure abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
Compressor temperature sensor
Pressure switch error
IPM error
CT error
Active filter module (AFM) error
Compressor does not operate
Outdoor unit fan error
Communication error
(inverter multicontroller)
2 way valve sensor error
Expansion valve error
Connection indoor unit error
01
00
02
03
04
05
06
08
09
0A
0c
0E
11
12
13
14
15
16
17
18
19
1A
1b
1c
1d
1E
1F
2005.12.19 10
Communication error
(Indoor unit remote controller)
Communication error
(Indoor unit outdoor unit)
