Si39-504
Troubleshooting by Indication on the Remote Controller
Troubleshooting
173
Troubleshooting
(V2778)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace float switch.
Modify the float switch's
connection and turn on again.
Connect the drain pump and
turn on again.
Check the drain piping for
clogging or upward slope, etc.
Replace indoor unit PC board.
Replace the drain pump or
check for dirt, etc.
Connect either a short circuit
connector or float switch and
turn on again.
YES
YES
YES
YES
YES
Defect of indoor unit PC board.
Loose connection of connector.
NO
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
NO
The float
switch is connected to
X8A of the indoor unit
PC board.
NO
The drain
pump works when
the power supply is reset
for the indoor
unit.
The drain
pump is connected
to X25A or terminals Y1
and Y2 of the
indoorunit PC
board.
The voltage
of terminals Y1
and Y2 or X25A is
220~240 V (within
5minutes of resetting
the power
supply).
Water builds up
in the drain pan.
The float
switch contact is
forming a short circuit
(continuity check
with X8A or X15A
disconnected)
A short
circuit connector is
connected to
X8A.
Provide 220~240V power
supply.
YES
NO
Is power supply
220~240V provided?
Becomes
normal when X8A of
the indoor unit PC board
is short circuited
The float switch
functions normally.
Summary of Contents for VRV II RXYQ5MATL
Page 53: ...Specifications Si39 504 42 Specifications...
Page 115: ...Outline of Control Indoor Unit Si39 504 104 Function...
Page 161: ...Field Setting Si39 504 150 Test Operation...
Page 172: ...Si39 504 Troubleshooting by Remote Controller Troubleshooting 161...
Page 266: ...Si39 504 Piping Diagrams Appendix 255 RXYQ8MA 10MA 12MAYL E TL E 3D048033A...
Page 267: ...Piping Diagrams Si39 504 256 Appendix RXYQ14MA 16MAYL E TL E 3D048034A...
Page 271: ...Wiring Diagrams for Reference Si39 504 260 Appendix RXYQ8MA 10MA 12MAYL E 3D047088C...
Page 272: ...Si39 504 Wiring Diagrams for Reference Appendix 261 RXYQ14MA 16MAYL E 3D047089C...
Page 273: ...Wiring Diagrams for Reference Si39 504 262 Appendix 2 1 2 RXYQ MATL E RXYQ5MATL E 3D049059A...
Page 274: ...Si39 504 Wiring Diagrams for Reference Appendix 263 RXYQ8MA 10MA 12MATL E 3D049060A...
Page 275: ...Wiring Diagrams for Reference Si39 504 264 Appendix RXYQ14MA 16MATL E 3D049061A...
Page 283: ...Wiring Diagrams for Reference Si39 504 272 Appendix FXCQ40M 50M 80M 125MVE 3D039557A...
Page 285: ...Wiring Diagrams for Reference Si39 504 274 Appendix FXKQ25M 32M 40M 63MVE 3D039564B...
Page 289: ...Wiring Diagrams for Reference Si39 504 278 Appendix FXMQ40M 50M 63M 80M 100M 125MVE 3D039620B...
Page 290: ...Si39 504 Wiring Diagrams for Reference Appendix 279 FXMQ200M 250MVE 3D039621B...
Page 291: ...Wiring Diagrams for Reference Si39 504 280 Appendix FXHQ32M 63M 100MVE 3D039801D...
Page 292: ...Si39 504 Wiring Diagrams for Reference Appendix 281 FXAQ20M 25M 32MVE 40M 50M 63MVE 3D034206C...
Page 309: ...Selection of Pipe Size Joints and Header Si39 504 298 Appendix Note 1...
Page 315: ...Method of Replacing The Inverter s Power Transistors and Diode Modules Si39 504 304 Appendix...
