SiUS341615E
Troubleshooting by Error Code
Service Diagnosis
258
Troubleshooting
Check in Monitor Mode
12/14 ton classes are
equipped with 2 compressors.
Check for the compressor 1 or
2 applicable to the error code
P4
while in monitor mode of
the outdoor unit PCB.
Make measurement of
resistance of the radiation
fin thermistor.
Is the
resistance of the
relevant thermistor
normal?
The
insulation
resistance of the
relevant inverter compressor
is not more than
100 k
Ω
.
The insulation
resistance of the relevant
fan motor is not more
than 1 M
Ω
.
Turn ON the
power supply.
Does the error
recur?
NO
YES
NO
YES
NO
YES
YES
NO
Replace the inverter PCB.
(
1)
1
RXYQ72-120TA: A3P
RXYQ144/168TA: A3P, A6P
Replace the compressor.
RXYQ72-120TA: M1C
RXYQ144/168TA: M1C, M2C
Replace the fan motor.
Replace the inverter PCB.
(
1)
Continue operation.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Summary of Contents for RXYQ-TA Series
Page 1: ...Service Manual SiUS341615E RXYQ72 408TAYDU RXYQ72 408TATJU Heat Pump 60 Hz...
Page 321: ...SiUS341615E Wiring Diagrams Appendix 308 RXYQ96 120TAYDU 2D106439A...
Page 322: ...Wiring Diagrams SiUS341615E 309 Appendix RXYQ144 168TAYDU 2D106440A...
Page 323: ...SiUS341615E Wiring Diagrams Appendix 310 RXYQ72TATJU 3D106435A...
Page 324: ...Wiring Diagrams SiUS341615E 311 Appendix RXYQ96 120TATJU 2D106436A...
Page 325: ...SiUS341615E Wiring Diagrams Appendix 312 RXYQ144 168TATJU 2D106437A...
Page 335: ...SiUS341615E Wiring Diagrams Appendix 322 VAM1200GVJU 3D073270C...
Page 336: ...Revision History Month Year Version Revised contents 02 2017 SiUS341615E First edition...
