Error code
Remote controller:
7-segment display:
LED
Green
Red
Indoor
Outdoor
Content
–
77
–
*1 E37-1: one time flash (Tho-R1), E37-2: 2 time flash (Tho-R2), E37-5: 5 time flash (Tho-SC), E37-6: 6 time flash (Tho-H)
E37
E37-1, 2, 5, 6*1
Outdoor heat exchanger
temperature termistor (Tho-R) and subcooling coil
temperature thermistor (Tho-SC,-H) anomaly
Keeps flashing
Stays Off
Keeps flashing
*1
1. Applicable model
5. Troubleshooting
Outdoor unit
Diagnosis
Countermeasure
Is the
connector of
thermistor connected
properly?
Are the
characteristics of
thermistor
OK?*2
*2
Check several times to prove any poor connection
Outdoor heat exchanger temperature thermistor (Tho-R1, R2, R5, R6)
Sub-cooling coil thermistor (Tho-SC, Tho-H)
Temperature-resistance characteristics
Save data for 30 minutes before stopping in Mente PC
YES
NO
NO
YES
Temperature (°C)
5kΩ at 25°C
Temperature thermistor resistance (kΩ)
Check and save the data of
operating conditions
Check the conditions whether
it occurs immediately after the
power on or during operation
or stopping.
Check the sensed value.
Compare the temperature
on Mente PC with actual
measured value
Insert the connector
securely
Replace Thermistor
(Tho-SC, Tho-H, Tho-R)
Replace outdoor control
PCB
2. Error detection method
Detection of anomalously low
temperature (resistance)
of Tho-R or Tho-SC or Tho-H
3.
Condition of error displayed
•
If -50°C or lower is detected for 5
seconds continuously within 2-minutes to
2-minutes 20-seconds after the compressor
ON, the compressor stops. And after
3-minutes delay, the compressor starts
again automatically, but if this anomalous
temperature is detected 3 times within 40
minutes after the initial detection.
•
If -50°C or lower is detected for 5 seconds
continuously within 20 seconds after power ON
4. Presumable cause
• Broken thermistor harness or
the internal wire of sensing
section (Check the molded
section as well)
• Disconnection of thermistor
harness connection
(connector)
• Outdoor control PCB anomaly
Note:
Summary of Contents for 112KXE6
Page 105: ... 101 Model FDC335KXE6 A PCB003Z035 shows local wining ...
Page 134: ... 130 PJF012D003 ...
Page 135: ... 131 ...
Page 139: ... 135 PJA012D751 b ...
Page 140: ... 136 ...
Page 206: ... 202 2 model type DIS model type HEAD ...
Page 207: ... 203 2 2 ...
Page 208: ... 204 2 2 2 2 2 ...