-
429
-
E6
Indoor heat exchanger
temperature sensor anomaly
1(3) time flash
(1)
ON
Keeps flashing
Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis
Countermeasure
NO
NO
YES
Is the
connection of indoor heat
exchanger temperature sensor
connector OK?
Are
characteristics of indoor
heat exchanger temperature
sensor OK?
YES
Temperature-resistance characteristic
T
emperature sensor resistance (k
Ω
)
Temperature (°C)
15
10
5
0
10
30
40
20
50
(Broken wire)
(Short circuit)
5k
Ω
at 25
°C
Correct.
➞
Insert connector
securely.
Defective indoor heat
exchanger temperature
sensor
➞
Replace.
Defective indoor control
PCB
➞
Replace.
(Defective indoor unit heat
exchanger temperature
sensor input circuit)
2. Error detection method
Anomalously low temperature
or high temperature (resistance)
is detected on the indoor heat
exchanger sensor (Th2
1
, Th2
2
).
3.
Condition of Error displayed
• When the temperature sensor
detects -28
°C or lower for 15
seconds continuously, the
compressor stops. After 3-
minutes delay, the compressor
starts again automatically,
but if this error occurs again
within 60 minutes after the
initial detection.
4. Presumable cause
• Defective indoor heat
exchanger sensor connector
• Indoor heat exchanger
temperature sensor anomaly
• Faulty indoor control PCB
Note:
Note(1) Value in ( ) are the Th2
2
.
Error code
Remote controller:
Indoor
display
RUN light TIMER light
Green LED Red LED
Outdoor
control PCB
Content
-
429
-
'12 • PAC-T-174
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 ...