Failure code
TROUBLE SHOOTING | FAILURE CODE | POSSIBLE REASONS | ||
(DISPLAYED ON LCD) | ||||
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Faulty temperature sensor Tai | 1 | Sensor disconnected, or broken, or at wrong | ||
position, or short circuit | ||||
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Faulty temperature sensor Tc1 | 2 | Sensor disconnected, or broken, or at wrong |
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position, or short circuit |
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Faulty temperature sensor Tc2 | 3 | Sensor disconnected, or broken, or at wrong | ||
position, or short circuit | ||||
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Faulty temperature sensor Tm | 4 | Sensor disconnected, or broken, or at wrong |
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position, or short circuit |
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Faulty EEPROM on indoor | 5 | Faulty indoor unit PCB | ||
unit PCB | ||||
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Abnormal communication |
| Wrong connection, or the wires be disconnected, | ||
6 | or wrong address setting of indoor units, or faulty | |||
between indoor and outdoor unit | ||||
| PCB, or faulty power supply | |||
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Indoor unit address repeated | 9 | Wrong setting of indoor unit address | ||
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Central control address repeated | 10 | Wrong setting of centralized control indoor unit | ||
address | ||||
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Faulty indoor unit fan motor | 11 | Fan is blocked, or the terminal is disconnected | ||
from the PCB, or faulty indoor unit PCB | ||||
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Faulty driver of indoor unit | 12 | Faulty indoor unit PCB | ||
fan motor | ||||
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Malfunction on outdoor unit | 20 | Check the outdoor unit | ||
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Note:
1.Please contact the installers or distributors when trouble happens to repair it.
2.Turn the power off and power on again, if the failure code recurs, please change the indoor unit PCB.
3.Failrue codes maked with 
are resumable.
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