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Troubleshooting by Error Codes
SiUS281811EA
278
Part 6 Service Diagnosis
Reference
Reference
Troubleshooting
CHECK 3
Refer to page 294.
CHECK 4
Refer to page 295.
NO
NO
NO
YES
YES
YES
NO
YES
CHECK 4
CHECK 3
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the
power supply
voltage between L1 and L2,
L2 and L3, and L1 and L3 within
208 V –10% to 230 V
+10%?
Is the
measured voltage greater or equal
to 220-240 VDC?
Check the inverter power transistor.
Is the power transistor failing?
Is the resistance greater than
the standard?
Measure voltage b and - of
the electrolytic capacitor (C+, C-)
when the compressor is operating.
Calibrate the power voltage.
If L2 and Phase N are disconnected,
replace the distribution box.
Replace the fan motor.
Monitor voltage.
(Instantaneous voltage drop)
Replace the outdoor main PCB (A1P).
Replace the outdoor main PCB (A1P).
Check the PCB condition.
In case of a serious failure,
compressor failure may lead to PCB
failure. Therefore, failure would recur
when replacing the PCB. To avoid
this situation, recheck whether the
compressor is grounded or whether
the wire is broken. Moreover, check
the compressor after 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...