Trane 4TXM2318BF300AA, Руководство по обслуживанию

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127
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 slave unit
malfunction in MAXI system
0
0
0
0
0
7
8
12
13
14
Abnormal communi-
cation between w
ire
d
contro
ll
e
er and indoor
Wrong connection or wired
c
ontroller broken,or PCB
f
f
aulty
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 th
h
e indo
o
o
o
r un
n
it,the checking method as follo-
ws:
If the outdoor error code is M
(
DECIMAL)
，
the indoor unit’s wired controller display will
m
2.To get much more details about the out door unit failure,ple
ase 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 swit
ch disconnected
，
or at wrong position,or the
short circuit bridge disconne
ted
0150521239
Indoor unit DC fan
motor abnormal
Wired
controller
display
01
02
04
07
/
0C
0D
0E
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 f lash the error code 16 (2→2+20=22
→change decimal 22 to hexadecimal code,get 16
）
unit
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