Troubleshooting at the remote control LCD
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 temperature sensor 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 (P.F.C.) 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
2008.12.02 12
25 P.F.C. circuit error
30 Refrigerant circuit address set-up error
31 Master unit, Slave unit set-up error
33 P.F.C. PCB error
32 Connected the indoor number set-up error
