Haier 1UH071N1ERG [179/238] Smart power

Haier 1UH071N1ERG [179/238] Smart power
177
Smart Power
ADH105H1ERG ADH125H1ERG ADH140H1ERG ADH160H1ERG
LED ash times of
indoor PCB
Infrared
remote
recever
display
Contents of malfunction Possible reasons
LED4 LED1
0 1 01
Malfunction of indoor unit ambient
temperature sensor
Sensor disconected, or briken, or at
wrong position, or short circuit
0 2 02
Malfunction of indoor unit piping
temperature sensor
Sensor disconected, or briken, or at
wrong position, or short circuit
0 4 04 EEPROM erong of indoor PCB
EEPROM chip disconected or broken
or wrong programmed, or PCB broken
0 7 07
Abnormal communication between
indoor and outdoor units
Wrong connection, or the wires be
disconected or wrong adress setting
of indoor unit or faulty power supply or
faulty PCB or slave unit malfunction in
MAXI system
0 8
/
Abnormal communication between
wired controller and indoor unit
Wrong connection or wired controller
broken, or PCB faulty
0 12 0C Malfunction of drain system
Pump motor disconnected or at
wrong position, or the oat switch,
disconnected, or at wrong position, or
the short circuit bridge disconneted
0 13 0D Zero cross sigal wrong Zero cross sigal detected wrong
0 14 0E Indoor unit DC fan motor abnormal
DC Fan motor disconnectde or DC Fan
broken or circuit broken
Note:
1. The outdoor failure can also be indicated by the indoor unit, the checking method as follows: If the outdoor error
code is M (DECIMAL) , the indoor unit's wired controller display will show the after converted hexadecimal code
of "M+20" (DECIMAL) , for example, if the outdoor error code is 2, the indoor unit wired controller display will
ash the error code 16 (2→2+20=22→change deciaml 22 to hexadecimal code, get 16)
2. To get much more details about the out door unit failure, please refer to the outdoor unit trouble shooting list.

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