126
4MXC2324BF0W0AA
LED flash times
of indoor PCB
Contents of
Malfunction
Possible reasons
LED4
LED1
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 slave unit
malfunction in MAXI system
0
0
0
0
0
7
8
12
13
14
Abnormal communi-
cation between wired
controller
(
or I.R. RECE
Wrong connection or wired
controller broken,or PCB
faulty
Malfunction of 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 the indoor unit,the checking method as follo-
ws: If the outdoor error code is M
(
DECIMAL)
,
the indoor unit’s I.R. receiver display will sh-
2.LED4 is a red one on the indoor PCB,LED1 is a yellow one.
3.To get much more details about the out door unit failure,please refer to
the outdoor unit trouble shooting list.
INDOOR UNIT TROUBLE SHOOTING
Sensor disconected
,
or brok-
en,or at wrong position,or
short circuit
Pump motor disconnected
or at wrong position,or the
float switch disconnected
,
or at wrong position,or the
short circuit bridge disconne
ted
0150516957
Indoor unit DC fan
motor abnormal
I.R .
RECEIVER
DIGITAL
DISPLAY
01
02
04
07
08
0C
0D
0E
IVER)
and indoor unit
ow the after converted hexadecimal code of “M+20“(DECIMAL)
,
for example,if the outdoor
error code is 2,the indoor unit I.R. receiver display will flash the error code 16 (2→2+20=22
→change
decimal 22 to hexadecimal code,get 16
)
Содержание 4TXM2318BF300AA
Страница 102: ...100 PCB 0151800611 4MXE2309BF0W0AA 4MXE2312BF0W0AA...
Страница 116: ...114 PCB 0151800364D Power Module 0011800377C...
Страница 117: ...115 Power Module 0011800377AJ PCB 0151800364C...
Страница 153: ...151 Screw 0010600325 Terminal block 0010452210E Connection cable 0150400330 Install the connection cable like this way...