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Troubleshooting
Si01-406
100
Service Diagnosis
Troubleshooting
Check No.5
Refer to P.115
Check No.6
Refer to P.116
Check No.11
Refer to P.120
Correct.
Reconnect.
Replace the four way valve
coil.
Replace the outdoor unit
PCB.
Reconnect in position.
Replace a defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four way valve
(defective or dust-clogged).
(R3040)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four way valve coil
disconnected (loose)?
YES
YES
NO
Functioning
NO
Check No. 11
Check the refrigerant line.
Malfunctioning
l
Insufficient gas
l
Water mixed
l
Stop valve defective
Harness out of connector?
NO
YES
Disconnect the
harness from
the connector.
Resistance between
harnesses about
3k
Ω
±0.5k
Ω
?
Malfunctioning
Functioning
Check No. 5
Check the four way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
Check No. 6
Check the thermistors.
Check the continuity of the four
way valve coil and harness.
Summary of Contents for FT25CV1A
Page 7: ...Si01 406 vi Table of Contents...
Page 15: ...Functions Si01 406 4 List of Function...
Page 21: ...Specifications Si01 406 10 Specifications...
Page 205: ...Wiring Diagrams Si01 406 194 Appendix...
Page 209: ...Si01 406 iv Index...