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Troubleshooting by Error Codes
SiUS281811EA
264
Part 6 Service Diagnosis
Reference
4.36 Thermistor Abnormality
Error Code
H9, J3, J5, J6, J7, J9
Applicable
Models
All outdoor units
Method of Error
Detection
Error is detected from the temperature detected by the thermistor (
∗
1).
Error Decision
Conditions
The thermistor has short circuit or open circuit.
Supposed
Causes
Defective thermistor
Defective outdoor main PCB
Disconnection of thermistor.
Troubleshooting
CHECK 11
Refer to page 301.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Connector is
connected to outdoor
unit PCB.
Replace the outdoor main PCB
(A1P).
Connect the connector and turn on
again.
NO
NO
Replace the defective thermistor.
YES
YES
Resistance
is normal when
measured after
disconnecting the thermistor
from the outdoor main
PCB.
CHECK 11
Error
code
Thermistor
18/24 class
30/36/42/48 class
Symbol
Connector
Symbol
Connector
H9
Outdoor air thermistor
R1T
X11A
R1T
X11A
J3
Discharge pipe thermistor
R2T
X12A
R2T
X12A
J5
Suction pipe thermistor
R3T
R3T
R5T
R5T
J6
Outdoor heat exchanger deicer thermistor
R4T
R4T
J7
Outdoor heat exchanger liquid pipe
thermistor
R7T
X13A
R7T
X13A
J9
Subcooling heat exchanger gas pipe
—
—
R6T
Summary of Contents for SkyAir RZR-TA Series
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Page 202: ...SiUS281811EA 196 Part 6 Service Diagnosis 5 15 Fan Motor Connector Check for FTQ TA 311...
Page 323: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 317 RZR18 24TAVJUA RZQ18 24TAVJUA 3D124495...
Page 327: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 321 FHQ18 24 30PVJU FHQ36 42MVJU 3D048116C...
Page 328: ...Wiring Diagrams SiUS281811EA 322 Part 7 Appendix FAQ18 24TAVJU 3D114844B...
Page 329: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 323 FBQ18 24 30 36 42 48PVJU 3D065984J...