Troubleshooting by Remote Controller
SiBE341001
113
Troubleshooting
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
YES
NO
Rectify defective points, if any.
YES
NO
NO
YES
NO
YES
NO
YES
Replace the high pressure switch.
Check for the points shown below.
(1) Is the high pressure switch connector properly
connected to the main PCB?
(2) Does the high pressure switch have continuity?
Are the two points
above OK?
(1) Mount a pressure gauge on the high pressure
service port.
(2) Reset the operation using the remote
controller, and then restart the operation.
Does the stop due
to malfunction (E3)
recur?
Is the high pressure switch
operating value normal (i.e.,
4.0MPa)?
Are the
characteristics of the
high pressure sensor
normal? (See *1.)
Replace the high pressure sensor.
Replace the main PCB (A1P).
Check if the “high
pressure” value and the
actual measurement value
by pressure sensor are
the same.
· The high pressure sensor is normal, and the pressure detected with the PCB is also normal.
· The high pressure has really become high.
Referring to information on P.189, remove the causes by
which the high pressure has become high.
*1: Make a comparison between the voltage of the pressure sensor and that read by the
pressure gauge.
(As to the voltage of the pressure sensor, make measurement of voltage at the connector,
and then convert it to pressure according to information on P.201.)
*2: Make measurement of voltage of the pressure sensor.
+5V
Connector for high
pressure sensor (Red)
Micro-controller
A/D input
Make measurement of DC
voltage between these wires.
Red
Black
White
High
pressure
sensor
(4)
(3)
(2)
(1)
Service Checker
Connect the service checker to compare the “high pressure” value and the
actual measurement value by pressure sensor (Refer to *1) by using the
service checker.
CHECK 1
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...
