-
144
-
'17 • PAC-T-256
Error code
Remote control:
LED
Green
Red
Indoor
Outdoor
Content
E6
Indoor heat exchanger
temperature thermistor anomaly
Keeps flashing 1-time flash
Keeps flashing
Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis
Countermeasure
NO
NO
YES
Is the
connection of indoor heat
exchanger temperature thermistor
connector OK?
Are
characteristics of indoor
heat exchanger temperature
thermistor OK?
YES
Temperature-resistance characteristic
Temperature thermistor 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
thermistor
➞
Replace.
Defective indoor unit
control PCB
➞
Replace.
(Defective indoor unit heat
exchanger temperature
thermistor input circuit)
2. Error detection method
Anomalously low temperature
or high temperature (resistance)
is detected on the indoor heat
exchanger thermistor (Thi-R1,
R2 or R3).
3. Condition of error displayed
• When the temperature
thermistor detects -50°C
or lower for 5 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.
• Or if 70°C or higher is
detected for 5 seconds
continuously.
4. Presumable cause
• Defective indoor heat
exchanger thermistor
connector
• Indoor heat exchanger
temperature thermistor
anomaly
• Faulty indoor unit control
PCB
Note: