Troubleshooting at the remote control
REMOTE CONTROL
ERROR DETECTION
This is possible only on the wired remote control.
Self-diagnosis
If an error occurs, the following display will be shown.
If "CO" appears in the unit number display,
there is a remote control error.
Refer to the installation instruction sheet
included with the remote control.
(“EE” will appear in the set room temperature display.)
Unit number
Error code
Ex. Self-diagnosis
SU MO TU WE TH FR SA
Error
code Error contents
01
13
26
27
Indoor signal error
00
Wired remote control abnormal
02
Indoor room thermistor error
04
Indoor heat exchanger thermistor (middle) error
28
Indoor heat exchanger thermistor (inlet) error
09
Float switch operated
0c
Outdoor discharge pipe thermistor error
06
Outdoor heat exchanger thermistor (outlet) error
0A
Outdoor thermistor error
0E
Heat sink thermistor (Inverter) error
15
Compressor thermistor error
1d
2-way valve thermistor error
1E
3-way valve thermistor error
29
Outdoor heat exchanger thermistor (middle) error
2d
Heat sink thermistor (PFC) error
20
Indoor manual auto switch abnormal
2A
Power supply frequency detection error
17
IPM protection
18
CT error
1A
Compressor location error
1b
Outdoor fan error
1F
Connected indoor unit abnormal
1c
Outdoor unit computer communication error
2E
Inverter error
12
Indoor fan abnormal
0F
Discharge temperature error
24
Excessive high pressure protection on cooling
2c
4-way valve abnormal
16
Pressure switch abnormal, Pressure sensor abnormal
2b
Compressor temperature error
2F
Low pressure error
19
Active filter abnormal
2011.05.16
15
25
PFC circuit error
30
Refrigerant circuit address set-up error
31
Master unit, Slave unit set-up error
33
PFC PCB error
32
Connected the indoor number set-up error
