E57
1. Applicable model
5. Troubleshooting
All models
Diagnosis
Countermeasure
NO
YES
NO
YES
Is the
service valve fully
opened?
Are the
connections of indoor
heat exchanger and/or room
temperature sensor
connectors OK?
NO
YES
NO
YES
Are the
characteristics of indoor heat
exchanger and/or room
temperature sensor
OK?
Is the low
pressure during operation
normal?
Indoor heat exchanger, room temperature sensor
Temperature-resistance characteristics
15
10
5
0
10
30
40
20
50
Temperature thermistor resistance (k
Ω
)
Temperature (°C)
5k
Ω
at 25°C
(Broken wire)
(Short circuit)
Open fully.
Correct indoor heat
exchanger, room
temperature sensor
connector connections.
Defective indoor
heat exchanger, room
temperature sensor
➞
Replace.
Charge refrigerant.
Defective indoor control
PCB
➞
Replace. (Defective
indoor heat exchanger,
room temperature sensor
input circuits)
2. Error detection method
• Judge insufficient refrigerant
amount by detecting the
temperature differnce between
indoor heat exchanger (Th2)
and indoor room (Th1).
• It detects at initial startup in
cooling or dehumidifying
mode after power ON.
3.
Condition of Error displayed
Anomalous stop at initial
detection
4. Presumable cause
• Defective indoor heat
exchanger temperature sensor
• Defective indoor room
temperature sensor
• Defective indoor control PCB
• Insufficient refregerant
amount
Note: Insufficient refrigerant amount preventive control makes compressor stopped, if it judges insufficient refrigerant amount by detecting the
temperature difference between indoor heat exchanger (Th2) and room temperature (Th1) for 1 minute after compressor ON in cooling or
dehumidifying mode and for 9 minutes after compressor ON in heating mode. [ in cooling mode: (Th1)-(Th2)>4degC, in heating mode:
(Th2)-(Th1)<4degC]
Error code
Remote control:
Content
1-time flash
Keeps flashing
Keeps flashing
ON
7-time flash
Indoor display
RUN light
TIMER light
Green LED
Yellow LED
Red LED
Outdoor
control PCB
Outdoor
inverter PCB
Insufficient refrigerant amount
or detection of service valve closure
-
489
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'13 • PAC-T-197
Summary of Contents for V Multi 100VNX
Page 98: ... 97 13 PAC T 197 Models FDT100VF1 125VF 140VF H H H H H C B A F G D G PJF000Z285 A ...
Page 101: ... 100 13 PAC T 197 Models FDEN60VF 71VF1 C2 C1 A B A B D C1 C2 C1 C2 E G F C PFA003Z817 ...
Page 116: ... 115 13 PAC T 197 b Wireless remote control RCN E1R 60 17 150 Unit mm ...
Page 291: ... 290 13 PAC T 197 261 12 PAC T 173 ー K ...
Page 590: ... 589 13 PAC T 197 3 8 SUPER LINK E BOARD SC ADNA E F ...
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