176
Smart Power
ADH071M3ERG
LED ash times of
indoor PCB
Wired
controller
display
Contents of Possible reasons
LED4 LED3
0 1 01
Malfunction of indoor unit ambient
temperature sensor
Sensor disconected, or broken, 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 wrong of indoor PCB
EEPROM chip disconected or broken
or wrong program-med, 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
PCB hardware malfunction
0 8 /
Abnormal communication between
wired controller and indoor unit
Wrong connection or wired controller
broken, or PCB hardware malfunction
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 disconne ted
0 13 0D Zero cross sigal wrong Zero cross sigal detected wrong
0 14 0E Indoor unit DC fan motor abnormal
DC Fan motor disconnected or DC Fan
broken or circuit broken
Note:
1. The outdoor failure can also be indicated by thhe indoooor unnit,the checking method as follows:If the outdoor
error code is Mm (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 decimal 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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