![background image](http://html2.mh-extra.com/html/daikin/ftyn25gxv1b/ftyn25gxv1b_service-manual_4701921077.webp)
Troubleshooting
SiBE01-829
66
Service Diagnosis
Troubleshooting
Check No.06
Refer to P.67
(R8507)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
YES
Malfunctioning
NO
NO
YES
YES
YES
NO
Functioning
YES
NO
NO
NO
YES
* Indoor heat exchanger thermistor
Check for gas leakage.
Change for a specified amount of
fresh refrigerant.
Replace
in position.
Open the stop valve.
Repair the pipe flare or
replace the square union.
Check the power transistor
harness for looseness.
Correct it as required. Also
replace cracked pipe if any.
Check the pipes for
improper contact. Correct
as required. Also replace
cracked pipe if any.
Replace the indoor unit or
outdoor unit heat exchanger
thermistor.
(1) Replace the PCB.
(2) Replace the
compressor.
Procedure complete
Gas shortage error again?
Oil oozing at internal
piping?
Stop valve closed?
Compressor vibrating
too much?
Oil oozing at relay
pipe connections?
Is thermistor
disconnected?
Check No. 06
Check the thermistors.
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...