• Error code
Error message Error contents Error code
Serial communication error
(Serial Reverse Transfer Error)
E: 11.X. Serial communication error (Serial
reverse transfer error) (Outdoor unit)
11.1
11.2
Serial communication error
(Serial Forward Transfer Error)
E: 11.X. Serial communication error (Serial
forward transfer error) (Indoor unit)
11.3
11.4
Wired remote controller communication error
E: 12.X. Wired remote controller
communication error (Indoor unit)
12.1
Indoor unit PCB model information error
E: 32.X. Indoor unit main PCB error (Indoor
unit)
32.1
Manual auto switch error
E: 35.X. MANUAL AUTO button error
(Indoor unit)
35.1
Room temp. sensor error
E: 41.X. Room temperature sensor error
(Indoor unit)
41.1
Indoor unit Heat Ex. Middle temp. sensor
error
E: 42.X. Indoor unit heat exchanger sensor
error (Indoor unit)
42.2
Indoor unit fan motor error
E: 51.X. Indoor unit fan motor error (Indoor
unit)
51.1
51.2
Outdoor unit main PCB model information
error
E: 62.X. Outdoor unit main PCB error
(Outdoor unit)
62.1
62.2
Inverter error E: 63.X. Inverter error (Outdoor unit)
63.1
63.2
PC circuit error E: 64.X. PFC circuit error (Outdoor unit)
64.1
64.3
64.4
64.8
Discharge temp. sensor error
E: 71.X. Discharge thermistor error
(Outdoor unit)
71.1
Outdoor unit Heat Ex. liquid temp. sensor
error
E: 73.X. Outdoor unit heat exchanger
thermistor error (Outdoor unit)
73.3
Outdoor temp. sensor error
E: 74.X. Outdoor temperature thermistor
error (Outdoor unit)
74.1
Current sensor error E: 84.X. Current sensor error (Outdoor unit) 84.1
Trip detection E: 94.X. Trip detection (Outdoor unit) 94.1
Compressor rotor position detection error
E: 95.X. Compressor motor control error
(Outdoor unit)
95.1
95.3
Outdoor unit fan motor error
E: 97.X. Outdoor unit fan motor error
(Outdoor unit)
97.3
4-way valve error E: 99.X. 4-way valve error (Outdoor unit) 99.1
Discharge temp. error
E: A1.X. Discharge temperature error
(Outdoor unit)
A1.1
1-5. Error code table (Mobile App) - (03-5) - 1. Error code
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