SiBE341001
Troubleshooting by Remote Controller
Troubleshooting
136
2.20
“
JC
”
Outdoor Unit: Malfunction of Low Pressure Sensor
Remote
Controller
Display
JC
Applicable
Models
RQYQ-PY1
RQEQ-PY1
Method of
Malfunction
Detection
Malfunction is detected from the pressure detected by the low pressure sensor.
Malfunction
Decision
Conditions
When the low pressure sensor is short circuit or open circuit.
(Not less than 1.77MPa, or -0.01MPa and below)
Supposed
Causes
Defect of low pressure sensor
Connection of high pressure sensor with wrong connection.
Defect of outdoor unit PCB
Defective connection of low pressure sensor
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Are the characteristics of the low
pressure sensor normal? (Make
a comparison between the
voltage characteristics (
∗
1) and
the gauge pressure.)
NO
Replace the low pressure sensor.
Confirm which low pressure
sensor is abnormal using
outdoor unit "monitor mode".
(Refer to P.106~P.107)
1. Set the low pressure gauge
upright.
2. Connect the checker for
VRV to the gauge.
If the PCB pressure
detection normal? (Make a
comparison between the
checker pressure data and
the voltage characteristics
(
∗
1).)
Reset the operation, and then
restart the outdoor unit.
Are the
characteristics of
the low pressure
sensor normal?
Replace the main PCB.
Replace the low pressure sensor.
Replace the main PCB.
NO
NO
YES
YES
YES
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...
