SiUS041829E
Check
Part 6 Service Diagnosis
115
5.5 Four Way Valve Performance Check
Check No.13
5.6 Inverter Unit Refrigerant System Check
Check No.14
(R21936)
NO
YES
YES
NO
T
u
rn off the power. Then, t
u
rn on
the power to restart the system.
Disconnect the fo
u
r way valve coil
from the connector and check the
contin
u
ity.
Start heating operation.
∗
Fo
u
r way valve coil
Cooling/Dry/Defrost: Not energized
Heating: energized
Replace the o
u
tdoor
u
nit
PCB (main PCB).
Replace the fo
u
r way valve
coil.
Replace the fo
u
r way valve.
Fo
u
r 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
Check for refrigerant leakage.
See the service diagnosis on
refrigerant shortage (
U0
).
(R15833)
YES
NO
Reconnect the thermistor.
Replace the refrigerant.
Is the discharge
pipe thermistor
disconnected from the
holder?
Содержание FTXR-T Series
Страница 17: ...SiUS041829E Part 2 Specifications 13 1 Specifications 14 Part 2 Specifications...
Страница 125: ...SiUS041829E Check Part 6 Service Diagnosis 121 18 class R25105 1 2 3 4 Multimeter...
Страница 127: ...SiUS041829E Check Part 6 Service Diagnosis 123 18 class R20704 W V U DC_P1 DC_N1...
Страница 139: ...SiUS041829E Piping Diagrams Part 8 Appendix 135 1 2 Outdoor Unit RX09 12RMVJU9 RX18RMVJU9 3D092207C 3D092220C...
Страница 143: ...SiUS041829E Operation Limit Part 8 Appendix 139 4 Operation Limit RX09 12 18RMVJU9 3D092209E...
