SiBE341001
Troubleshooting by Remote Controller
Troubleshooting
156
2.30
“
U1
”
Reverse Phase, Open Phase
Remote
Controller
Display
U1
Applicable
Models
RQYQ-PY1
RQEQ-PY1
Method of
Malfunction
Detection
The phase of each phase are detected by reverse phase detection circuit and right phase or
reverse phase are judged.
Malfunction
Decision
Conditions
When a power supply is reverse phase, or T phase is open phase.
Supposed
Causes
Power supply reverse phase
T phase open phase
Defect of outdoor PCB (A1P)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Fix the open phase. Requires
inspection of field power supply
section.
There is an
open phase at the power
supply (T phase) terminal
section (X1M) of the
outdoor unit.
NO
Operation is
normal if one place
of power supply
line phase is
replaced.
NO
YES
YES
Reverse phase
Counter measure of the problem is
completed by phase replacement.
Reverse phase
Counter measure of the problem is
completed by phase replacement.
Replace the outdoor unit PCB
(A1P).
Summary of Contents for RQYQ140-180PY1
Page 216: ...Piping Diagrams SiBE341001 207 Appendix 1 2 BS Unit BSVQ100 160 250PV1 4D057985B...
Page 217: ...SiBE341001 Piping Diagrams Appendix 208 BSV4Q100PV1 3D064148...
Page 218: ...Piping Diagrams SiBE341001 209 Appendix BSV6Q100PV1 3D064149...
Page 220: ...Wiring Diagrams for Reference SiBE341001 211 Appendix 2 2 BS Unit BSVQ100 160 250PV1 3D055928C...
Page 221: ...SiBE341001 Wiring Diagrams for Reference Appendix 212 BSV4Q100PV1 3D063928B...
Page 222: ...Wiring Diagrams for Reference SiBE341001 213 Appendix BSV6Q100PV1 3D063929B...
Page 223: ...SiBE341001 Option List Appendix 214 3 Option List 3 1 Option Lists Outdoor Unit 3D066354...