Haier AD100S2SH5FA - Page 13

11
INDOOR UNIT TROUBLE SHOOTING
LED flash times
of indoor PCB
Contents of
Malfunction
Possible reasons
LED4 LED
3
0
0
0
1
2
4
Malfunction of indoor
unit ambient temper-
ature sensor
Sensor disconected
,
or brok-
en,or at wrong position,or
short circuit
Malfunction of indoor
unit
piping temper-
ature sensor
EEPROM wrong of
indoor PCB
EEPROM chip disconected
or broken or wrong program-
med,or PCB broken
Abnormal communi-
cation between indo-
or and outdoor units
Wrong connection,or the
wires be disconected or wro-
ng adress setting of indoor
unit or faulty power supply
or faulty PCB or sub unit
malfunction in MAXI system
0
0
0
0
0
7
8
12
13
14
Abnormal communi-
cation between w
ire
d
cont
roll
e
r and indoor
Wrong connection or wired
c
ontroller broken,orPCB
f
au
l
ty
Malfunction
o
f drain
system
,
Zero cross sigal
wrong
Zero cross sigal detected
wrong
DC Fan motor disconnected
or DC Fan broken or circuit
broken
Note:
1.The outdoor failure can also be indicated by t
h
e ind
oo
r u
n
it,the checking method as follo-
ws:
If the outdoor error code is M
(
DECIMAL)
*
the indoor unit s wired controller display will
2.To get much more details about the out door unit failure,ple
ase refer to
the outdoor unit trouble shooting list.
Sensor disconected
,
or brok-
en,or at wrong position,or
short circuit
Pump motor disconnected
or at wrong position,or the
float swit
ch disconnected
*
or at wrong position,or the
short circuit bridge disconne
or motor blocked
ted
Indoor unit DC fan
motor abnormal
Wired
controller
display
01
02
04
07
0C
0D
0E
show the after converted hexadecimal code of DECIMAL)
,
for example,if the outdoor
error code is 2,the indoor unit wired controller display will f
decimal 22 to hexadecimal code,get 16
*
unit
07
*flashing
3.For YR-E17 communication error between I.D.PCB and wired controller
07 will flash in the main display not the check display interface .
AD100S2SH5FA/AD125S2SH5FA/AD140S2SH5FA/AD160S2SH5FA
Troubleshooting