Haier AD182ALERA User Manual - Page 23

Failure Code For *ERA 22 For remote Failure code For central Failure description type, flash on wired control, times controller failure code 1 01(01H) 01D Indoor ambient temp. sensor failure 2 02(02H) 02D Indoor coil temp. sensor failure 3 74(4AH) 11D Outdoor ambient temp. sensor failure 4 73(49H) 12D Outdoor coil temp. sensor failure Reason Remarks Sensor broken down or short circuit for more than 2m continuously Sensor broken down or short circuit for more than 2m continuously Sensor broken down or short circuit for more than 2m continuously Sensor broken down or short circuit for more than 2m continuously 5 72(48H) 10D Over-current protection CT check abnormal 3 times in 30m 6 83(53H) 14D High pressure abnormal High pressure switch acts 3 times in 30m 7 71(47H) 22D Power supply abnormal Fault phase, short of phase, out of balance greatly 8 07(07H) 06D Communication between wired controller and indoor abnormal Communication abnormal for more than 4m continuously 9 06(06H) 05D Communication between indoor and outdoor abnormal Communication abnormal for more than 4m continuously 10 08(08H) 21D Drainage system abnormal Float switch broken down for more than 25m continuously 11 11(0BH) 30D Outside alarm signal input Outside signal broken down for more than 10s 12 03(03H) 20D Gas pipe temp. sensor abnormal Sensor broken down or short circuit for more than 2m continuously 13 13(0DH) 31D Temperature protection malfunction Solenoid valve act incorrectly 3 times continuously 14 76(4CH) 15D Discharging temp. sensor abnormal Sensor broken down or short circuit for more than 2m continuously 15 05(05H) 17D EEPROM abnormal EEPROM data missing 16 84(54H) 26D Pressure abnormal(low pressure) 17 80(50H) 15D Compressor overheat Low pressure switch acts in normal running The discharging temperature is higher than 120degree Resumable if lower than 100 degree 18 12(0CH) 23D Abnormal mode Indoor operation mode is different with the running indoor unit. 19 75(4BH) 18D Outdoor coil B(suction temp sensor-for MRV II) Sensor broken down or short circuit for more than 2m continuously 20 77(4DH) 15D Outdoor discharging B(oil temp sensor-for MRV II) Sensor broken down or short circuit for more than 2m continuously 21 20(32D) 07D SPDU module temperature protection Spdu module temperature is too high shows resumable fault, shows it is not resumable fault.