FGLair Mobile App
9RLS3Y, 12RLS3Y, 15RLS3Y
Error Code Error Message
11.1
Serial communication error between indoor/outdoor units
11.2
11.3
11.4
12.1 Remote controller communication error
18.1 External communication error
32.1 Indoor unit main PCB error
35.1 Indoor unit manual auto switch error
41.1 Indoor unit room temp. thermistor error
42.2 Indoor unit heat ex. temp. thermistor error
51.1
Indoor unit fan motor 1 error
51.2
62.1
Outdoor unit main PCB error
62.2
63.1
Outdoor unit inverter PCB error63.2
64.1
Indoor Ceiling Cassettes
AUU18RCLX, AUU24RCLX, AUU36RCLX, AUU42RCLX
Error code Error Contents
01 Indoor unit doesn’t accept signal from outdoor unit
02 Room temperature sensor open
03 Room temperature sensor short circuited
04 Indoor heat exchanger temperature sensor open
05 Indoor heat exchanger temperature sensor short circuited
06 Outdoor heat exchanger temperature sensor
08 Power source connection error
09 Float switch operated
0A Outdoor temperature sensor error
0c Discharge pipe temperature sensor
11 Model abnormal/indoor EPROM abnormal
12 Indoor fan abnormal
13 Outdoor unit doesn’t accept the signal from the indoor unit
14 Excessive outdoor pressure (permanent stop)
15 Compressor temperature sensor
16 Pressure switch error
17 IPM error
18 CT error
19 Active lter module (AFM) error
1A Compressor does not operate
1b Outdoor unit fan error
1c Communication error (inverter to multi controller)
1d 2-way valve sensor error
1E Expansion valve error
1F Connection indoor unit error
64.3
Outdoor unit active lter / PFC circuit error64.4
64.8
65.3 Outdoor unit IPM error
71.1 Outdoor unit discharge temp. thermistor error
73.3 Outdoor unit heat ex. temp. thermistor error
74.1 Outdoor air temp. thermistor error
84.1 Outdoor current sensor error
94.1 Outdoor unit trip detection
95.1
Outdoor unit compressor motor control error
95.3
97.3 Outdoor unit fan motor 1 error
99.1 Outdoor unit 4-way valve error
A1.1 Outdoor unit discharge temperature 1 error
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