-
438
-
Error code
Remote controller:
Content
1 time flash
Keeps flashing
Keeps flashing
4 times flash
Keeps flashing
Indoor display
RUN light
TIMER light
Green LED
Yellow LED
Red LED
Outdoor
control PCB
Outdoor
inverter PCB
Discharge pipe
temperature thermistor anomaly
-
438
-
'12 • PAC-T-174
E39
1. Applicable model
5. Troubleshooting
All models
Diagnosis
Countermeasure
Is the
discharge pipe
temperature thermistor
connector connected
properly?
YES
Are the
characteristics
of discharge pipe
temperature
thermistor
OK?
NO
For the characteristics of discharge pipe
temperature thermistor, see the following graph.
YES
温度センサ抵抗
〔
T�80�
〕
温度センサ抵抗
〔
T�80�
〕
温 度〔T〕
(
�
)
T�80�
T�80�
100
50
0
10
5
0
0
50
80
100
(k)
(k)
0
20
40
60
80
100
120
140
160
180
200
0
20
40
60
80 100 120 140 160
NO
Temperature-resistance characteristics
Temperature thermistor resistance (k
7
)
Temperature (°C)
(Broken wire)
(Short circuit)
Correct connector.
Defective discharge pipe
temperature thermistor
➞
Replace.
Defective outdoor control
PCB
➞
Replace.
(Defective temperature
thermistor input circuit)
2. Error detection method
Detection of anomalously low
temperature (resistance) on
the discharge pipe temperature
thermistor
3.
Condition of Error displayed
When the temperature thermistor
detects -10°C or lower for 5
seconds continuously within
10 minutes to 10 minutes 20
seconds after the compressor
ON, the compressor stops. After
3-minutes delay, the compressor
starts again automatically, but
if this anomalous temperature
is detected 3 times within 40
minutes.
4. Presumable cause
• Defective outdoor control
PCB
• Broken thermistor harness or
temperature sensing section
(Check molding.)
• Disconnected wire connection
(connector)
Note:
Summary of Contents for SRK100VNPZJX
Page 95: ... 94 12 PAC T 174 Models FDT100VF 125VF 140VF G H H H H A B F C D H G PJF000Z285 ...
Page 98: ... 97 12 PAC T 174 Models FDEN60VF 71VF C2 C1 A B F E G D B A C1 C2 C1 C2 PFA003Z817 B ...
Page 101: ... 100 12 PAC T 174 Models FDU200VF 250VF F F G B A C D E PJD001Z216 B ...
Page 113: ... 112 12 PAC T 174 b Wireless remote controller RCN E1R 60 17 150 Unit mm ...
Page 275: ... 274 12 PAC T 174 ...
Page 276: ... 275 12 PAC T 174 ...
Page 277: ... 276 12 PAC T 174 ...
Page 286: ... 285 12 PAC T 174 ...
Page 287: ... 286 12 PAC T 174 ...
Page 288: ... 287 12 PAC T 174 ...
Page 341: ... 340 12 PAC T 174 4GRNCEG VJG 2 Part number Power PCB Part number ...
Page 508: ... 507 12 PAC T 174 ...