20
| For remote Failure description | Reason | Remarks | |
| type, flash |
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| times |
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1 | Indoor ambient temp. sensor failure | Sensor broken down or short circuit for more than 2m continuously |
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2 | Indoor coil temp. sensor failure | Sensor broken down or short circuit for more than 2m continuously |
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3 | Outdoor ambient temp. sensor failure | Sensor broken down or short circuit for more than 2m continuously |
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4 | Outdoor coil temp. sensor failure | Sensor broken down or short circuit for more than 2m continuously |
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5 | CT check abnormal 3 times in 30m |
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6 | High pressure abnormal | High pressure switch acts 3 times in 30m |
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7 | Power supply abnormal | Fault phase, short of phase, out of balance greatly |
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| Communication between wired |
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8 | controller and indoor abnormal | Communication abnormal for more than 4m continuously |
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9 | Communication between indoor and outdoor abnormal | Communication abnormal for more than 4m continuously |
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10 | Drainage system abnormal | Float switch broken down for more than 25m continuously |
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11 | Outside alarm signal input | Outside signal broken down for more than 10s |
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12 | Gas pipe temp. sensor abnormal | Sensor broken down or short circuit for more than 2m continuously |
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13 | Temperature protection malfunction | Solenoid valve act incorrectly 3 times continuously |
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14 | Discharging temp. sensor abnormal | Sensor broken down or short circuit for more than 2m continuously |
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15 | EEPROM abnormal | EEPROM data missing |
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16 | Pressure abnormal(low pressure) | Low pressure switch acts in normal running |
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| Resumable if |
17 | Compressor overheat | The discharging temperature is higher than 120degree | lower than 100 | |
degree | ||||
18 | Abnormal mode | Indoor operation mode is different with the running indoor unit. |
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19Outdoor coil B(suction temp 
20Outdoor discharging B(oil temp 
shows resumable fault, * shows it is not resumable fault.