Check
SiUS091601EA
185
Part 6 Service Diagnosis
8.5 Four Way Valve Performance Check
Check No.13
8.6 Inverter Unit Refrigerant System Check
Check No.14
(R21936)
NO
YES
YES
NO
Turn off the power. Then, turn on
the power to restart the system.
Disconnect the four way valve coil
from the connector and check the
continuity.
Start heating operation.
∗
Four way valve coil
Cooling/Dry/Defrost: Not energized
Heating: energized
Replace the outdoor unit
PCB (main PCB).
Replace the four way valve
coil.
Replace the four way valve.
Four way valve
coil resistance at
1000 ~ 2000
Ω
?
S80 voltage at
208 - 230 VAC with
compressor on?
(Fig. 1)
(R14674)
(Fig. 1)
Compressor
ON
Voltage at S80
208 - 230 VAC
Time
Refrigerant system check
Is the discharge pipe
thermistor disconnected from
the holder?
Check for refrigerant leakage.
See the section on refrigerant
shortage detection.
(R18870)
YES
NO
Reconnect the thermistor.
Replace the refrigerant.
Содержание FTX-N Series
Страница 14: ...SiUS091601EA 9 Part 1 General Information 1 Applicable Models 10 2 Functions 11 Part 1 General Information...
Страница 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications...
Страница 132: ...Troubleshooting for FTX FVXS Series SiUS091601EA 127 Part 6 Service Diagnosis Reference Check No 01 Refer to P 181...
Страница 161: ...SiUS091601EA Troubleshooting for Outdoor Unit Part 6 Service Diagnosis 156 Reference Check No 14 Refer to P 185...
Страница 165: ...SiUS091601EA Troubleshooting for Outdoor Unit Part 6 Service Diagnosis 160 Reference Check No 18 Refer to P 190...
Страница 180: ...Troubleshooting for Outdoor Unit SiUS091601EA 175 Part 6 Service Diagnosis Reference Check No 19 Refer to P 191...
Страница 197: ...SiUS091601EA Check Part 6 Service Diagnosis 192 12 class 15 class Multimeter R23024 R25105 1 2 3 4 Multimeter...
Страница 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter...
Страница 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U...
Страница 228: ...Piping Diagrams SiUS091601EA 223 Part 8 Appendix 1 2 Outdoor Unit RXL09QMVJU RXL12QMVJU 9 3D100008 3D100009A...
Страница 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368...
Страница 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A...