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Check code
Wireless remote controller
Check code name
Judging device
Wired remote
controller display
Outdoor unit 7-segment display
Sensor block display of receiving unit
Auxiliary code
Operation
Timer
Ready
Flash
P22
P22
1 : Compressor 1 side
2 : Compressor 2 side
[
ALT
Outdoor unit fan inverter trouble
Inverter
P26
P26
1 : Comp. 1 side
2 : Comp. 2 side
[
ALT
IPM short protection trouble
Inverter
P29
P29
1 : Comp. 1 side
2 : Comp. 2 side
[
ALT
Comp. position detective circuit system trouble
Inverter
P31
–
–
[
ALT
Other indoor unit trouble
(Group follower indoor unit trouble)
Indoor unit
•
For details about check codes determined with an Interface P.C. board or an Inverter P.C. board, refer to the Installation Manual of the outdoor unit.
*1 Inverter quantity information
(Super Modular Multi System e and u series (SMMS-e, SMMS-u, SHRM-A))
No.
Comp. Inverter
Fan Inverter
Trouble
1
2
1
2
01
\
Comp. 1
02
\
Comp. 2
03
\
\
Comp. 1 + Comp. 2
08
\
Fan1
09
\
\
Comp. 1 + Fan1
0A
\
\
Comp. 2 + Fan1
0B
\
\
\
Comp. 1 + Comp. 2 + Fan1
10
\
Fan2
11
\
\
Comp. 1 + Fan2
12
\
\
Comp. 2 + Fan2
13
\
\
\
Comp. 1 + Comp. 2 + Fan2
18
\
\
Fan1 + Fan2
19
\
\
\
Comp. 1 + Fan1 + Fan2
1A
\
\
\
Comp. 2 + Fan1 + Fan2
1B
\
\
\
\
All
\
: Inverter trouble
Trouble detected by central control device
Check code
Wireless remote controller
Check code name
Judging device
Central control
device indication
Outdoor unit 7-segment display
Sensor block display of receiving unit
Auxiliary code
Operation
Timer
Ready
Flash
C05
–
–
–
Sending trouble in central control device
Central control device
C06
–
–
–
Receiving trouble in central control device
Central control device
C12
–
–
–
Batch alarm of general-purpose equipment control interface
General-purpose
equipment I/F
P30
(L20)
Differs according to trouble contents of unit with occurrence of alarm
Group control follower unit trouble
Central control device
–
–
(L20 is displayed.)
•
Duplication addresses of indoor units in central control device
•
With the combination of air conditioning system, the indoor unit may detect
the check code of L20
S01
–
–
–
Receiving trouble in central control device
Central control device
57-EN
58-EN