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Troubleshooting by Indication on the Remote Controller
SiUS39-602
180
Troubleshooting
Troubleshooting
(V2822)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is
indoor - outdoor
and outdoor - outdoor unit
transmission wiring
normal?
Supply 208~230 V.
Replace the fuse.
Fix the indoor/outdoor or
outdoor/outdoor unit
transmission wiring.
Push and hold the RESET
button on the outdoor unit PC
board for 5 seconds.
Replace the outdoor unit PC
Board (A1P).
YES
YES
NO
YES
Replace the indoor unit PC
Board.
Push and hold the RESET
button on the master outdoor
unit PC Board for 5 seconds.
Fix the indoor/outdoor or
outdoor/outdoor unit
transmission wiring.
YES
NO
NO
YES
Has
the indoor
or outdoor unit PC
board been replaced,
or has the indoor - outdoor
or outdoor - outdoor unit
transmission wiring
been
modified?
All
indoor unit
remote controllers of the
same refrigerant system
display
"U4."
NO
Outdoor
unit PC board
microcomputer monitor
(HAP) blinks.
NO
NO
NO
Operation
ready lamp (H2P) is
blinking.
Lamp does
not go off for 12 minutes
or more.
Is indoor
- outdoor and outdoor -
outdoor unit transmission
wiring normal?
YES
The fuse on
the outdoor unit's PC
board is burnt.
Replace the transformer.
replacement
Replace outdoor unit PC
board. (A1P)
NO
The
secondary voltage
of the transformer is
about 22 V.
NO
The
voltage between
terminals L1 and N of the
outdoor unit PC board
is 208~230 V.
∗
The unit will not operate for
up to 12 minutes.
Reset the power supply.
YES
YES
YES
NO
YES
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...