SiUS281811EA
Troubleshooting by Error Codes
Part 6 Service Diagnosis
237
4.18 Defective Capacity Setting
Error code
AJ
Method of Error
Detection
Capacity is determined according to resistance of the capacity setting adaptor and the memory
inside the IC memory on the indoor unit PCB, and whether the value is normal or abnormal is
determined.
Error Decision
Conditions
The capacity code is not saved to the PCB, and the capacity setting adaptor is not connected.
A capacity that does not exist for that unit is set.
Supposed
Causes
Defective capacity setting adaptor connection
Defective indoor unit PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Replace the indoor unit control
PCB (A1P).
Replace the indoor unit control
PCB (A1P).
NO
NO
YES
YES
Install a capacity setting
adaptor.
The
indoor unit PCB was replaced
with a spare PCB.
The
capacity setting
adaptor was installed when
replacing the PCB.
Summary of Contents for SkyAir RZR-TA Series
Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811EA...
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...