Discharge Thermistor Error
OK
OK
DC
Discharge temperature thermistor
Discharge temperature thermistor short detected
Discharge thermistor open detected
1. Connector connection failure, open
2. Thermistor failure
3. Main PCB failure
Check Point 1 : Check the connector connection and cable open
Connector connection state check
Cable open check
Check Point 2 : Check the thermistor
Thermistor characteristics check (Disconnect the thermistor from the PCB and check.)
* For the thermistor characteristics, refer to the "Service Parts Information 8".
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Main PCB 30/36(CN63:1-2) 45/54(CN62:1-2) voltage value = 5V
Remove the thermistor from Main PCB, check the voltage.
If the voltage does not appear, replace Main PCB
,
and execute the check operation again.
02-22
Trouble shooting 20
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Indicate or Display:
Error code : 71
POWER
MODE
ERROR
2
7
)
6
L
(
)
2
L
(
)
1
L
(
(L5)
(L4)
(L3)
1
PUMP
DOWN
LOW
NOISE
PEAK
CUT
Outdoor unit : Model 45.54
CN62
TH
E
R
M
IS
TOR
(C
O
M
P
S
H
ELL
)
TH
E
R
M
IS
TO
R
(D
IS
.P
IP
E
.)
BL
A
C
K
BL
A
C
K
B
LA
C
K
B
LA
C
K
[45/ 54]
1 2
3 4
1 2
3 4
Discharge temperature thermistor (
CN62:1-2)
BR
O
W
N
BR
O
W
N
[30/ 36]
CN63
TH
E
R
M
IS
TOR
(D
IS
.PIPE.
)
3 2 1
3 2 1
Discharge temperature thermistor (
CN63:1-3)
