-
128
-
'11 • KX-T-166
Error code
Remote controller:
7-segment display:
LED
Green
Red
Indoor
Outdoor
Content
*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)
T
e
mperature-resistance characteristics
Save data
for 30
minutes before stopping
in Mente
PC
YES
NO
NO
YES
T
e
mperature (°C)
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:
Temperature thermistor resistance (k
Ω
)
