Error code
Remote controller:
7-segment display:
LED
Green
Red
Indoor
Outdoor
Content
–
90
–
E56
E56-1
Power transitor temperature
thermistor anomaly (Tho-P1)
Keeps flashing
Stays Off
Keeps flashing 1 time flash
1. Applicable model
5. Troubleshooting
Outdoor unit
Diagnosis
Countermeasure
Is the
connector of
thermistor connected
properly OK
?
Are the
characteristics of
thermistor OK?
Temperature-resistance characteristics of power transistor
temperature thermistor (Tho-P1)
Save data for 30 minutes before stopping in Mente PC
YES
NO
NO
YES
Temperature (°C)
Power transistor thermistor
resistance (kΩ)
0
20
40
60
80
100
120
140
160
180
200
0
20
40
60
80
100
120
140
*1 Check several times to prove any poor connection
*1
Check and save the data of
operating condition.
Check the conditions
whether it occurs
immediately after the
power on or during
operation or stopping.
Check the sensed value.
Compare the temperature
of Mente PC data with
actual measured value
Insert the connector
securely
Replace power transistor
temperature thermistor
(Tho-P1).
Replace outdoor control
PCB.
2. Error detection method
Detection of anomalously low
temperature (resistance) of
Tho-P1
3.
Condition of error displayed
When the outdoor air temperature
is above 0ºC, if -10ºC or lower
is detected for 20 seconds
continuously within 10 minutes
to 10 minutes 30 seconds after
compressor ON, compressor stops.
When the compressor is restarted
automatically after 3-minutes
delay, if this anomaly occurs 3
times within 40 minutes
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 ...
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