Haier ADH071M3ERG - Care and Maintenance; Air Filter Cleaning

11
Troubleshooting
INDOOR UNIT TROUBLE SHOOTING
Malfunction of indoor unit
ambient temperature sensor
LED flash times
of indoor PCB
Wired
controller
display
LED4
LED3
Contents of Malfunction Possible reasons
01 01
Sensor disconected,or broken, or at
wrong position,or short circuit
02 02
Malfunction of indoor unit
piping temperature sensor
Sensor disconected,or broken,or at
wrong position,or short circuit
0
404
EEPROM wrong of indoor
PCB
EEPROM chip disconected or broken
or wrong programmed, or PCB broken
07 07
Abnormal communication
between indoor and outdoor
units
Wrong connection,or the wires be
disconected or wrong address setting
of indoor unit or faulty power supply
or PCB hardware malfunction
08 /
Abnormal communication
between wired controller and
indoor unit
Wrong connection or wired controller
broken,or PCB hardware malfunction
0120C
Malfunction of drain system
Pump motor disconnected or at wrong
position,or the float switch
disconnected, or at wrong position,or
the short circuit bridge disconnected
0130D
Zero cross signal wrong
Zero cross signal detected wrong
0140E
Abnormal communication
between main control PCB &
fan motor driver
communication wire disconnected or
wrong connected or PCB hardware
malfunction
0150F
Fan motor overcurrent
Fan motor current too high
01711
DC voltage high or low
DC voltage of the fan motor driver too
high or too low
01812
F.M.D temperature high
Fan motor driver over 95 C
01913
Fan motor out of step
Wrong rotor location detected
M( 1) N( 0)
/
Error of the outdoor unit
See note 1,2
Note:
1.The outdoor failure can also be indicated by the indoor unit,the checking method as follows:
outdoor unit error code=(M 10+N)-20.LED4 flash M times and LED3 flash N times .
2.To get much more details about the out door unit failure,please refer to the outdoor unit trouble shooting list.