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Troubleshooting
SiBE01-829
60
Service Diagnosis
4.5
Thermistor or Related Abnormality
4.5.1 Heat Exchanger Thermistor
Remote
Controller
Display
C4
,
J6
Method of
Malfunction
Detection
The temperatures detected by the indoor and outdoor heat exchanger thermistors are used to
determine thermistor errors.
Malfunction
Decision
Conditions
When the indoor and outdoor heat exchanger thermistor input is 0.04 V or less during
compressor operation
∗
.
∗
(Reference)
Indoor and outdoor heat exchanger thermistor: 1150k
Ω
or more
Supposed
Causes
Faulty connector connection
Faulty thermistor
Faulty PCB
Troubleshooting
Check No.06
Refer to P.67
C4
:
Indoor heat exchanger thermistor
J6
:
Outdoor heat exchanger thermistor
YES
(R8513)
NO
Check No. 06
Check the thermistor resistance
value.
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Correct the connection.
Replace the thermistor.
Replace the indoor unit PCB.
Is it normal?
Is it normal?
Check the connector connection.
Summary of Contents for FTYN25GXV1B
Page 1: ...SiBE01 829 Applied Models Non Inverter Pair Heat Pump SPLIT Pair Wall Mounted Type G Series...
Page 11: ...Introduction SiBE01 829 x...
Page 12: ...SiBE01 829 List of Function 1 Part 1 List of Function 1 Functions 2...
Page 15: ...Functions SiBE01 829 4 List of Function...
Page 16: ...SiBE01 829 Specifications 5 Part 2 Specifications 1 Specifications 6...
Page 19: ...Specifications SiBE01 829 8 Specifications...
Page 81: ...Check SiBE01 829 70 Service Diagnosis...
Page 86: ...Others SiBE01 829 108 Others...
Page 92: ...Wiring Diagrams SiBE01 829 114 Appendix...